BlackTreeCVE Intelligence
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Full vulnerability report · 2026
CVE-2026-23490High confidence

pyasn1 has a DoS vulnerability in decoder

pyasn1 · pyasn1

Official source article: GitHub GHSA-63VM-454H-VHHQ ↗. Check the applicable product and release in the original source.

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Critical, raised one band.upgradedsince 17 Sep 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.77% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs pyasn1 pyasn1 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcepyasn1Vendor fix publishedDebian records a fixed source-package version for this release.0.6.1-1+deb13u1Debian Security Tracker ↗Source updated 7 Oct 2026
Debian bookwormbookworm · sourcepyasn1Vendor fix publishedDebian records a fixed source-package version for this release.0.4.8-3+deb12u1Debian Security Tracker ↗Source updated 7 Oct 2026
Debian forkyforky · sourcepyasn1Vendor fix publishedDebian records a fixed source-package version for this release.0.6.2-1Debian Security Tracker ↗Source updated 7 Oct 2026
Debian sidsid · sourcepyasn1Vendor fix publishedDebian records a fixed source-package version for this release.0.6.2-1Debian Security Tracker ↗Source updated 7 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivepyasn1Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.0.4.8-4ubuntu0.1Canonical Ubuntu Security ↗Source updated 6 Oct 2026
Open-source package ranges1 source-attributed range

These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.

Ecosystem and packageAffected rangeFirst fixed versionEvidence
pippyasn1= 0.6.10.6.2GitHub advisory ↗upstream repository advisory · 14 Aug 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-23490 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitypyasn1: pyasn1: Denial of Service due to memory exhaustion from malformed RELATIVE-OID
23 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • lightspeed-core/dataverse-exporter-rhel9 as a component of Lightspeed Core
  • lightspeed-core/lightspeed-stack-rhel9 as a component of Lightspeed Core
  • rhmtc/openshift-migration-rhel8-operator as a component of Migration Toolkit for Containers
  • migration-toolkit-virtualization/mtv-rhel9-operator as a component of Migration Toolkit for Virtualization
  • mtv-candidate/mtv-rhel9-operator as a component of Migration Toolkit for Virtualization
  • openshift-lightspeed/lightspeed-service-api-rhel9 as a component of OpenShift Lightspeed
  • openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9 as a component of OpenShift Lightspeed
  • rhaiis/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server
  • ansible-automation-platform-24/ee-minimal-rhel8 as a component of Red Hat Ansible Automation Platform 2
  • ansible-automation-platform-24/ee-minimal-rhel9 as a component of Red Hat Ansible Automation Platform 2
  • ansible-automation-platform-24/lightspeed-rhel8 as a component of Red Hat Ansible Automation Platform 2
  • ansible-automation-platform-25/ee-minimal-rhel8 as a component of Red Hat Ansible Automation Platform 2
Summary
A flaw was found in pyasn1, a generic ASN.1 library for Python. A remote attacker could exploit this vulnerability by sending a specially crafted RELATIVE-OID with excessive continuation octets. This input validation vulnerability leads to memory exhaustion, resulting in a Denial of Service (DoS) for the affected system.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-2865

No EUVD known-exploited evidence

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
7.5 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

What

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

Why

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

Why

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

CISA Vulnrichment records proof-of-concept exploitation in its SSVC data. BlackTree has not independently executed or validated exploit material.

Likely attack path
a network path → Allocation of Resources Without Limits or Throttling → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-770 ↗

CWE-770: Allocation of Resources Without Limits or Throttling. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-770Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-2865Official EUVD mapping

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3046IBM Concert: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM Concert ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um einen SQL-Injection Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
BSI · German · WID-SEC-2026-2189Dell PowerProtect Data Domain: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Dell PowerProtect Data Domain ausnutzen, um seine Privilegien zu erhöhen um beliebigen Programmcode auszuführen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, um Informationen offenzulegen, und um Dateien zu manipulieren.

Official advisory ↗
BSI · German · WID-SEC-2026-1194Oracle Communications: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory ↗
BSI · German · WID-SEC-2026-1007IBM App Connect Enterprise: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um einen SQL-Injection Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-1730Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-0306Red Hat Enterprise Linux (pyasn1): Schwachstelle ermöglicht Denial of Service

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260121Security Bulletin 21 Jan 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 21 Jan 2026, published on 21 January 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1206Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-22008 Référence CVE CVE-2026-22013 https://www.cve.org/CVERecord?id=CVE-2026-22013 Référence CVE CVE-2026-22016 https://www.cve.org/CVERecord?id=CVE-2026-22016 Référence CVE CVE-2026-22018 https://www.cve.org/CVERecord?id=CVE-2026-22018 Référence CVE CVE-2026-22021 https://www.cve.org/CVERecord?id=CVE-2026-22021 Référence CVE CVE-2026-22741 https://www.cve.org/CVERecord?id=CVE-2026-22741 Référence CVE CVE-2026-22745 https://www.cve.org/CVERecord?id=CVE-2026-22745 Référence CVE CVE-2026-22746 https://www.cve.org/CVERecord?id=CVE-2026-22746 Référence CVE CVE-2026-22751 https://www.cve.org/CVERecord?id=CVE-2026-22751 Référence CVE CVE-2026-23490 https://www.cve.org/CVERecord?id=CVE-2026-23490 Référence CVE CVE-2026-23865 https://www.cve.org/CVERecord?id=CVE-2026-23865 Référence CVE CVE-2026-24051 https://www.cve.org/CVERecord?id=CVE-2026-24051 Référence CVE CVE-2026-25639 https://www.cve.org/CVERecord?id=CVE-2026-25639 Référence CVE CVE-2026-25646 https://www.cve.org/CVERecord?id=CVE-2026-25646 Référence CVE CVE-2026-26007 https://www.cve.org/CVERecord?id=CVE-2026-26007 Référence CVE CVE-2026-26996 https://www.cve.org/CVERecord?id=CVE-2026-26996 Référence CVE CVE-2026-27024 https://www.cve.org/CVERecord?id=CVE-2026-27024 Référence CVE CVE-2026-27025 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0901Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2026-22007 Référence CVE CVE-2026-22008 https://www.cve.org/CVERecord?id=CVE-2026-22008 Référence CVE CVE-2026-22013 https://www.cve.org/CVERecord?id=CVE-2026-22013 Référence CVE CVE-2026-22016 https://www.cve.org/CVERecord?id=CVE-2026-22016 Référence CVE CVE-2026-22018 https://www.cve.org/CVERecord?id=CVE-2026-22018 Référence CVE CVE-2026-22021 https://www.cve.org/CVERecord?id=CVE-2026-22021 Référence CVE CVE-2026-22029 https://www.cve.org/CVERecord?id=CVE-2026-22029 Référence CVE CVE-2026-2332 https://www.cve.org/CVERecord?id=CVE-2026-2332 Référence CVE CVE-2026-23479 https://www.cve.org/CVERecord?id=CVE-2026-23479 Référence CVE CVE-2026-23490 https://www.cve.org/CVERecord?id=CVE-2026-23490 Référence CVE CVE-2026-2359 https://www.cve.org/CVERecord?id=CVE-2026-2359 Référence CVE CVE-2026-23631 https://www.cve.org/CVERecord?id=CVE-2026-23631 Référence CVE CVE-2026-23745 https://www.cve.org/CVERecord?id=CVE-2026-23745 Référence CVE CVE-2026-23865 https://www.cve.org/CVERecord?id=CVE-2026-23865 Référence CVE CVE-2026-2391 https://www.cve.org/CVERecord?id=CVE-2026-2391 Référence CVE CVE-2026-23950 https://www.cve.org/CVERecord?id=CVE-2026-23950 Référence CVE CVE-2026-24051 https://www.cve.org/CVERecord?id=CVE-2026-24051 Référence CVE CVE-2026-24842 https://www.cve.org/CVERecord?id=CVE-

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0736Multiples vulnérabilités dans les produits Splunk

d?id=CVE-2026-20253 Référence CVE CVE-2026-20254 https://www.cve.org/CVERecord?id=CVE-2026-20254 Référence CVE CVE-2026-20255 https://www.cve.org/CVERecord?id=CVE-2026-20255 Référence CVE CVE-2026-20256 https://www.cve.org/CVERecord?id=CVE-2026-20256 Référence CVE CVE-2026-20257 https://www.cve.org/CVERecord?id=CVE-2026-20257 Référence CVE CVE-2026-20258 https://www.cve.org/CVERecord?id=CVE-2026-20258 Référence CVE CVE-2026-20259 https://www.cve.org/CVERecord?id=CVE-2026-20259 Référence CVE CVE-2026-20260 https://www.cve.org/CVERecord?id=CVE-2026-20260 Référence CVE CVE-2026-22701 https://www.cve.org/CVERecord?id=CVE-2026-22701 Référence CVE CVE-2026-23490 https://www.cve.org/CVERecord?id=CVE-2026-23490 Référence CVE CVE-2026-24049 https://www.cve.org/CVERecord?id=CVE-2026-24049 Référence CVE CVE-2026-24051 https://www.cve.org/CVERecord?id=CVE-2026-24051 Référence CVE CVE-2026-25679 https://www.cve.org/CVERecord?id=CVE-2026-25679 Référence CVE CVE-2026-27142 https://www.cve.org/CVERecord?id=CVE-2026-27142 Référence CVE CVE-2026-27448 https://www.cve.org/CVERecord?id=CVE-2026-27448 Référence CVE CVE-2026-27459 https://www.cve.org/CVERecord?id=CVE-2026-27459 Référence CVE CVE-2026-34477 https://www.cve.org/CVERecord?id=CVE-2026-34477 Référence CVE CVE-2026-34480 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0667Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2026-22008 Référence CVE CVE-2026-22013 https://www.cve.org/CVERecord?id=CVE-2026-22013 Référence CVE CVE-2026-22016 https://www.cve.org/CVERecord?id=CVE-2026-22016 Référence CVE CVE-2026-22018 https://www.cve.org/CVERecord?id=CVE-2026-22018 Référence CVE CVE-2026-22021 https://www.cve.org/CVERecord?id=CVE-2026-22021 Référence CVE CVE-2026-22036 https://www.cve.org/CVERecord?id=CVE-2026-22036 Référence CVE CVE-2026-2229 https://www.cve.org/CVERecord?id=CVE-2026-2229 Référence CVE CVE-2026-23191 https://www.cve.org/CVERecord?id=CVE-2026-23191 Référence CVE CVE-2026-23401 https://www.cve.org/CVERecord?id=CVE-2026-23401 Référence CVE CVE-2026-23490 https://www.cve.org/CVERecord?id=CVE-2026-23490 Référence CVE CVE-2026-2359 https://www.cve.org/CVERecord?id=CVE-2026-2359 Référence CVE CVE-2026-23745 https://www.cve.org/CVERecord?id=CVE-2026-23745 Référence CVE CVE-2026-23865 https://www.cve.org/CVERecord?id=CVE-2026-23865 Référence CVE CVE-2026-23897 https://www.cve.org/CVERecord?id=CVE-2026-23897 Référence CVE CVE-2026-23950 https://www.cve.org/CVERecord?id=CVE-2026-23950 Référence CVE CVE-2026-24001 https://www.cve.org/CVERecord?id=CVE-2026-24001 Référence CVE CVE-2026-24842 https://www.cve.org/CVERecord?id=CVE-2026-24842 Référence CVE CVE-2026-25128 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

d?id=CVE-2026-22184 Référence CVE CVE-2026-22695 https://www.cve.org/CVERecord?id=CVE-2026-22695 Référence CVE CVE-2026-22715 https://www.cve.org/CVERecord?id=CVE-2026-22715 Référence CVE CVE-2026-22716 https://www.cve.org/CVERecord?id=CVE-2026-22716 Référence CVE CVE-2026-22717 https://www.cve.org/CVERecord?id=CVE-2026-22717 Référence CVE CVE-2026-22722 https://www.cve.org/CVERecord?id=CVE-2026-22722 Référence CVE CVE-2026-22795 https://www.cve.org/CVERecord?id=CVE-2026-22795 Référence CVE CVE-2026-22796 https://www.cve.org/CVERecord?id=CVE-2026-22796 Référence CVE CVE-2026-22801 https://www.cve.org/CVERecord?id=CVE-2026-22801 Référence CVE CVE-2026-23490 https://www.cve.org/CVERecord?id=CVE-2026-23490 Référence CVE CVE-2026-24515 https://www.cve.org/CVERecord?id=CVE-2026-24515 Référence CVE CVE-2026-25210 https://www.cve.org/CVERecord?id=CVE-2026-25210 Référence CVE CVE-2026-25547 https://www.cve.org/CVERecord?id=CVE-2026-25547 Référence CVE CVE-2026-25646 https://www.cve.org/CVERecord?id=CVE-2026-25646 Gestion détaillée du document le 26 février 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0209Multiples vulnérabilités dans les produits VMware

d?id=CVE-2026-21925 Référence CVE CVE-2026-21932 https://www.cve.org/CVERecord?id=CVE-2026-21932 Référence CVE CVE-2026-21933 https://www.cve.org/CVERecord?id=CVE-2026-21933 Référence CVE CVE-2026-21945 https://www.cve.org/CVERecord?id=CVE-2026-21945 Référence CVE CVE-2026-22695 https://www.cve.org/CVERecord?id=CVE-2026-22695 Référence CVE CVE-2026-22703 https://www.cve.org/CVERecord?id=CVE-2026-22703 Référence CVE CVE-2026-22795 https://www.cve.org/CVERecord?id=CVE-2026-22795 Référence CVE CVE-2026-22796 https://www.cve.org/CVERecord?id=CVE-2026-22796 Référence CVE CVE-2026-22801 https://www.cve.org/CVERecord?id=CVE-2026-22801 Référence CVE CVE-2026-23490 https://www.cve.org/CVERecord?id=CVE-2026-23490 Référence CVE CVE-2026-23949 https://www.cve.org/CVERecord?id=CVE-2026-23949 Référence CVE CVE-2026-24515 https://www.cve.org/CVERecord?id=CVE-2026-24515 Référence CVE CVE-2026-24733 https://www.cve.org/CVERecord?id=CVE-2026-24733 Référence CVE CVE-2026-25210 https://www.cve.org/CVERecord?id=CVE-2026-25210 Référence CVE CVE-2026-25646 https://www.cve.org/CVERecord?id=CVE-2026-25646 Référence CVE CVE-2026-26958 https://www.cve.org/CVERecord?id=CVE-2026-26958 Gestion détaillée du document le 25 février 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0199Multiples vulnérabilités dans les produits VMware

d?id=CVE-2026-21968 Référence CVE CVE-2026-22695 https://www.cve.org/CVERecord?id=CVE-2026-22695 Référence CVE CVE-2026-22703 https://www.cve.org/CVERecord?id=CVE-2026-22703 Référence CVE CVE-2026-22719 https://www.cve.org/CVERecord?id=CVE-2026-22719 Référence CVE CVE-2026-22720 https://www.cve.org/CVERecord?id=CVE-2026-22720 Référence CVE CVE-2026-22721 https://www.cve.org/CVERecord?id=CVE-2026-22721 Référence CVE CVE-2026-22795 https://www.cve.org/CVERecord?id=CVE-2026-22795 Référence CVE CVE-2026-22796 https://www.cve.org/CVERecord?id=CVE-2026-22796 Référence CVE CVE-2026-22801 https://www.cve.org/CVERecord?id=CVE-2026-22801 Référence CVE CVE-2026-23490 https://www.cve.org/CVERecord?id=CVE-2026-23490 Référence CVE CVE-2026-23949 https://www.cve.org/CVERecord?id=CVE-2026-23949 Référence CVE CVE-2026-24515 https://www.cve.org/CVERecord?id=CVE-2026-24515 Référence CVE CVE-2026-24733 https://www.cve.org/CVERecord?id=CVE-2026-24733 Référence CVE CVE-2026-25210 https://www.cve.org/CVERecord?id=CVE-2026-25210 Référence CVE CVE-2026-25547 https://www.cve.org/CVERecord?id=CVE-2026-25547 Référence CVE CVE-2026-25646 https://www.cve.org/CVERecord?id=CVE-2026-25646 Référence CVE CVE-2026-26014 https://www.cve.org/CVERecord?id=CVE-2026-26014 Gestion détaillée du document le 24 février 2026 Version initi

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-007294Debian等の複数ベンダの製品における制限またはスロットリング無しのリソースの割り当てに関する脆弱性

pyasn1はPython向けの汎用ASN.1ライブラリです。0.6.2より前のバージョンでは、不正に形成された継続オクテットが過剰なRELATIVE-OIDによってメモリ消費が枯渇し、サービス拒否が発生する問題が発見されました。この脆弱性は0.6.2で修正されています。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 16 Jan 2026 · Last source change 17 Sept 2026, 12:04 UTC · CWE-770 · Allocation of Resources Without Limits or Throttling

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-2865
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    lightspeed-core/dataverse-exporter-rhel9 as a component of Lightspeed Core; lightspeed-core/lightspeed-stack-rhel9 as a component of Lightspeed Core; rhmtc/openshift-migration-rhel8-operator as a component of Migration Toolkit for Containers; migration-toolkit-virtualization/mtv-rhel9-operator as a component of Migration Toolkit for Virtualization; mtv-candidate/mtv-rhel9-operator as a component of Migration Toolkit for Virtualization; openshift-lightspeed/lightspeed-service-api-rhel9 as a component of OpenShift Lightspeed; openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9 as a component of OpenShift Lightspeed; rhaiis/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server; ansible-automation-platform-24/ee-minimal-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-24/ee-minimal-rhel9 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-24/lightspeed-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/ee-minimal-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/ee-minimal-rhel9 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/lightspeed-chatbot-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/lightspeed-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-26/controller-rhel9 as a component of Red Hat Ansible Automation Platform 2; rhoai/odh-ml-pipelines-runtime-generic-rhel9 as a component of Red Hat OpenShift AI (RHOAI); openshift4/ose-ansible-rhel9-operator as a component of Red Hat OpenShift Container Platform 4; openshift4/ztp-site-generate-rhel8 as a component of Red Hat OpenShift Container Platform 4; quay/quay-rhel8 as a component of Red Hat Quay 3; python3.12-pyasn1-modules.src as a component of Red Hat Satellite 6; satellite/iop-advisor-engine-rhel9 as a component of Red Hat Satellite 6; satellite/iop-insights-engine-rhel9 as a component of Red Hat Satellite 6 · Fixed: python-pyasn1-0:0.1.9-7.el7_9.2.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS); python2-pyasn1-0:0.1.9-7.el7_9.2.noarch as a component of Red Hat Enterprise Linux Server (v. 7 ELS); python2-pyasn1-modules-0:0.1.9-7.el7_9.2.noarch as a component of Red Hat Enterprise Linux Server (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-aliyun-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-gcp-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-aliyun-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-gcp-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-sap-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-sap-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); sap-cluster-connector-0:3.0.1-37.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); sap-cluster-connector-0:3.0.1-37.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-sap-hana-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-sap-hana-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-sap-hana-scaleout-0:0.164.0-6.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); and 1820 more
    After
    lightspeed-core/dataverse-exporter-rhel9 as a component of Lightspeed Core; lightspeed-core/lightspeed-stack-rhel9 as a component of Lightspeed Core; rhmtc/openshift-migration-rhel8-operator as a component of Migration Toolkit for Containers; migration-toolkit-virtualization/mtv-rhel9-operator as a component of Migration Toolkit for Virtualization; mtv-candidate/mtv-rhel9-operator as a component of Migration Toolkit for Virtualization; openshift-lightspeed/lightspeed-service-api-rhel9 as a component of OpenShift Lightspeed; openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9 as a component of OpenShift Lightspeed; rhaiis/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server; ansible-automation-platform-24/ee-minimal-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-24/ee-minimal-rhel9 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-24/lightspeed-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/ee-minimal-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/ee-minimal-rhel9 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/lightspeed-chatbot-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-25/lightspeed-rhel8 as a component of Red Hat Ansible Automation Platform 2; ansible-automation-platform-26/controller-rhel9 as a component of Red Hat Ansible Automation Platform 2; rhoai/odh-ml-pipelines-runtime-generic-rhel9 as a component of Red Hat OpenShift AI (RHOAI); openshift4/ose-ansible-rhel9-operator as a component of Red Hat OpenShift Container Platform 4; openshift4/ztp-site-generate-rhel8 as a component of Red Hat OpenShift Container Platform 4; quay/quay-rhel8 as a component of Red Hat Quay 3; python3.12-pyasn1-modules.src as a component of Red Hat Satellite 6; satellite/iop-advisor-engine-rhel9 as a component of Red Hat Satellite 6; satellite/iop-insights-engine-rhel9 as a component of Red Hat Satellite 6 · Fixed: python-pyasn1-0:0.1.9-7.el7_9.2.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS); python2-pyasn1-0:0.1.9-7.el7_9.2.noarch as a component of Red Hat Enterprise Linux Server (v. 7 ELS); python2-pyasn1-modules-0:0.1.9-7.el7_9.2.noarch as a component of Red Hat Enterprise Linux Server (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-aliyun-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-gcp-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server HighAvailability (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-aliyun-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-gcp-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-sap-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-sap-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); sap-cluster-connector-0:3.0.1-37.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); sap-cluster-connector-0:3.0.1-37.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAP ELS (v. 7); resource-agents-0:4.1.1-61.el7_9.23.src as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-debuginfo-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-sap-hana-0:4.1.1-61.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-sap-hana-0:4.1.1-61.el7_9.23.x86_64 as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); resource-agents-sap-hana-scaleout-0:0.164.0-6.el7_9.23.ppc64le as a component of Red Hat Enterprise Linux Server for SAPHANA ELS (v. 7); and 1821 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    < 0.6.2 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    pyasn1: < 0.6.2 · Fixed: RHSA-2026:4148: Red Hat Enterprise Linux Server (v. 7 ELS)
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-2865↗Vendor CSAF · Red Hat Product Security↗CISA Vulnrichment SSVC evidence↗CVE authority or vendor reference · GitHub GHSA-63VM-454H-VHHQ↗Patch or update reference↗Vendor advisory↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-23490 · cve.blacktree.nl