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Full vulnerability report · 2026
CVE-2026-39892High confidence

cryptography has a buffer overflow if non-contiguous buffers were passed to APIs

pyca · cryptography

Official source article: GitHub GHSA-P423-J2CM-9VMQ ↗. Check the applicable product and release in the original source.

6.9MediumCVSS 4.0
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.76% 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.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs pyca cryptography 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: As exposure requiresRemediation target: Within 365 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

Alpine, Debian 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
Alpine v3.23v3.23 · mainpy3-cryptographyVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.46.0.7-r0Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourcepython-cryptographyNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcepython-cryptographyNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcepython-cryptographyVendor fix publishedDebian records a fixed source-package version for this release.46.0.7-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcepython-cryptographyVendor fix publishedDebian records a fixed source-package version for this release.46.0.7-1Debian Security Tracker ↗Source updated 6 Oct 2026
Open-source package ranges2 source-attributed ranges

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
PyPIcryptographyECOSYSTEM: introduced 45.0.0; fixed 46.0.746.0.7OSV record ↗aggregator derived · 10 Sep 2026
pipcryptography>= 45.0.0, < 46.0.746.0.7GitHub advisory ↗upstream repository advisory · 5 Jun 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-2026-39892 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitycryptography: Cryptography: Buffer overflow via non-contiguous buffer in API
154 known affected

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

  • openshift-lightspeed-tech-preview/lightspeed-rag-tool-rhel9 as a component of Lightspeed Core
  • redhat-user-workloads/lightspeed-stack as a component of Lightspeed Core
  • redhat-user-workloads/art-images as a component of Migration Toolkit for Applications 8
  • redhat-user-workloads/rhaiis-cpu-ubi9-3-3 as a component of Red Hat AI Inference Server
  • redhat-user-workloads/rhaiis-rocm-ubi9-3-3 as a component of Red Hat AI Inference Server
  • redhat-user-workloads/rhaiis-tpu-ubi9-3-3 as a component of Red Hat AI Inference Server
  • ansible-automation-platform-25/lightspeed-chatbot-rhel8 as a component of Red Hat Ansible Automation Platform 2
  • redhat-user-workloads/automation-reports as a component of Red Hat Ansible Automation Platform 2
  • redhat-user-workloads/ee-supported-rhel8 as a component of Red Hat Ansible Automation Platform 2
  • redhat-user-workloads/mcp-tools-rhel9 as a component of Red Hat Ansible Automation Platform 2
  • redhat-user-workloads/ee-minimal-ansible-core-2-19-rhel-8-tech-preview as a component of Red Hat Ansible Automation Platform Ansible Core 2
  • redhat-user-workloads/ee-minimal-ansible-core-2-19-rhel-9-tech-preview as a component of Red Hat Ansible Automation Platform Ansible Core 2
Summary
A flaw was found in the cryptography library. This vulnerability occurs when a non-contiguous buffer is passed to certain application programming interfaces (APIs) that accept Python buffers, such as Hash.update(). A remote attacker could exploit this to cause a buffer overflow, potentially leading to a denial of service.
Remediation
For details on how to apply this update, refer to Ansible Automation Platform documentation.
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-2026-20640

No EUVD known-exploited evidence

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

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
6.9 · CVSS 4.0
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

What

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

Why

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

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

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

Why

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

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.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Restriction of Operations within the Bounds of a Memory Buffer → 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
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-119 ↗

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer. The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Common Vulnerability Scoring System 4.0: 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.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCNoneVulnerable-system confidentiality: No direct loss is represented by this metric.VINoneVulnerable-system integrity: No direct loss is represented by this metric.VALowVulnerable-system availability: A successful attack can cause a limited loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
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-119
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-20640Official EUVD mapping

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

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-2026-2437Oracle 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-2026-1434IBM App Connect Enterprise Certified Container: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise Certified Container ausnutzen, um beliebigen Programmcode auszuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen oder Cross-Site-Scripting-Angriffe durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260415Security Bulletin 15 April 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 15 April 2026, published on 15 April 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

ecord?id=CVE-2026-34477 Référence CVE CVE-2026-34478 https://www.cve.org/CVERecord?id=CVE-2026-34478 Référence CVE CVE-2026-34479 https://www.cve.org/CVERecord?id=CVE-2026-34479 Référence CVE CVE-2026-34480 https://www.cve.org/CVERecord?id=CVE-2026-34480 Référence CVE CVE-2026-34481 https://www.cve.org/CVERecord?id=CVE-2026-34481 Référence CVE CVE-2026-35536 https://www.cve.org/CVERecord?id=CVE-2026-35536 Référence CVE CVE-2026-3621 https://www.cve.org/CVERecord?id=CVE-2026-3621 Référence CVE CVE-2026-3713 https://www.cve.org/CVERecord?id=CVE-2026-3713 Référence CVE CVE-2026-39824 https://www.cve.org/CVERecord?id=CVE-2026-39824 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-40175 https://www.cve.org/CVERecord?id=CVE-2026-40175 Référence CVE CVE-2026-40192 https://www.cve.org/CVERecord?id=CVE-2026-40192 Référence CVE CVE-2026-40466 https://www.cve.org/CVERecord?id=CVE-2026-40466 Référence CVE CVE-2026-40682 https://www.cve.org/CVERecord?id=CVE-2026-40682 Référence CVE CVE-2026-40864 https://www.cve.org/CVERecord?id=CVE-2026-40864 Référence CVE CVE-2026-40973 https://www.cve.org/CVERecord?id=CVE-2026-40973 Référence CVE CVE-2026-40988 https://www.cve.org/CVERecord?id=CVE-2026-40988 Référence CVE CVE-2026-40999 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1094Multiples vulnérabilités dans les produits IBM

ecord?id=CVE-2026-34520 Référence CVE CVE-2026-34525 https://www.cve.org/CVERecord?id=CVE-2026-34525 Référence CVE CVE-2026-34591 https://www.cve.org/CVERecord?id=CVE-2026-34591 Référence CVE CVE-2026-34993 https://www.cve.org/CVERecord?id=CVE-2026-34993 Référence CVE CVE-2026-3520 https://www.cve.org/CVERecord?id=CVE-2026-3520 Référence CVE CVE-2026-35469 https://www.cve.org/CVERecord?id=CVE-2026-35469 Référence CVE CVE-2026-3833 https://www.cve.org/CVERecord?id=CVE-2026-3833 Référence CVE CVE-2026-39304 https://www.cve.org/CVERecord?id=CVE-2026-39304 Référence CVE CVE-2026-39824 https://www.cve.org/CVERecord?id=CVE-2026-39824 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-40046 https://www.cve.org/CVERecord?id=CVE-2026-40046 Référence CVE CVE-2026-40186 https://www.cve.org/CVERecord?id=CVE-2026-40186 Référence CVE CVE-2026-40347 https://www.cve.org/CVERecord?id=CVE-2026-40347 Référence CVE CVE-2026-40466 https://www.cve.org/CVERecord?id=CVE-2026-40466 Référence CVE CVE-2026-40895 https://www.cve.org/CVERecord?id=CVE-2026-40895 Référence CVE CVE-2026-41043 https://www.cve.org/CVERecord?id=CVE-2026-41043 Référence CVE CVE-2026-41044 https://www.cve.org/CVERecord?id=CVE-2026-41044 Référence CVE CVE-2026-41140 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0865Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-11595 Référence CVE CVE-2026-11707 https://www.cve.org/CVERecord?id=CVE-2026-11707 Référence CVE CVE-2026-11708 https://www.cve.org/CVERecord?id=CVE-2026-11708 Référence CVE CVE-2026-11712 https://www.cve.org/CVERecord?id=CVE-2026-11712 Référence CVE CVE-2026-11714 https://www.cve.org/CVERecord?id=CVE-2026-11714 Référence CVE CVE-2026-11806 https://www.cve.org/CVERecord?id=CVE-2026-11806 Référence CVE CVE-2026-21441 https://www.cve.org/CVERecord?id=CVE-2026-21441 Référence CVE CVE-2026-26007 https://www.cve.org/CVERecord?id=CVE-2026-26007 Référence CVE CVE-2026-34073 https://www.cve.org/CVERecord?id=CVE-2026-34073 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-50645 https://www.cve.org/CVERecord?id=CVE-2026-50645 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Référence CVE CVE-2026-9563 https://www.cve.org/CVERecord?id=CVE-2026-9563 Gestion détaillée du document le 10 juillet 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 la Dé

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0834Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2026-31898 Référence CVE CVE-2026-31938 https://www.cve.org/CVERecord?id=CVE-2026-31938 Référence CVE CVE-2026-32141 https://www.cve.org/CVERecord?id=CVE-2026-32141 Référence CVE CVE-2026-33228 https://www.cve.org/CVERecord?id=CVE-2026-33228 Référence CVE CVE-2026-33532 https://www.cve.org/CVERecord?id=CVE-2026-33532 Référence CVE CVE-2026-33671 https://www.cve.org/CVERecord?id=CVE-2026-33671 Référence CVE CVE-2026-33672 https://www.cve.org/CVERecord?id=CVE-2026-33672 Référence CVE CVE-2026-33750 https://www.cve.org/CVERecord?id=CVE-2026-33750 Référence CVE CVE-2026-3676 https://www.cve.org/CVERecord?id=CVE-2026-3676 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-42033 https://www.cve.org/CVERecord?id=CVE-2026-42033 Référence CVE CVE-2026-42034 https://www.cve.org/CVERecord?id=CVE-2026-42034 Référence CVE CVE-2026-42035 https://www.cve.org/CVERecord?id=CVE-2026-42035 Référence CVE CVE-2026-42036 https://www.cve.org/CVERecord?id=CVE-2026-42036 Référence CVE CVE-2026-42037 https://www.cve.org/CVERecord?id=CVE-2026-42037 Référence CVE CVE-2026-42038 https://www.cve.org/CVERecord?id=CVE-2026-42038 Référence CVE CVE-2026-42039 https://www.cve.org/CVERecord?id=CVE-2026-42039 Référence CVE CVE-2026-42040 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0698Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-33894 Référence CVE CVE-2026-33895 https://www.cve.org/CVERecord?id=CVE-2026-33895 Référence CVE CVE-2026-33896 https://www.cve.org/CVERecord?id=CVE-2026-33896 Référence CVE CVE-2026-34268 https://www.cve.org/CVERecord?id=CVE-2026-34268 Référence CVE CVE-2026-34477 https://www.cve.org/CVERecord?id=CVE-2026-34477 Référence CVE CVE-2026-34478 https://www.cve.org/CVERecord?id=CVE-2026-34478 Référence CVE CVE-2026-34479 https://www.cve.org/CVERecord?id=CVE-2026-34479 Référence CVE CVE-2026-34480 https://www.cve.org/CVERecord?id=CVE-2026-34480 Référence CVE CVE-2026-39373 https://www.cve.org/CVERecord?id=CVE-2026-39373 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-40175 https://www.cve.org/CVERecord?id=CVE-2026-40175 Référence CVE CVE-2026-40895 https://www.cve.org/CVERecord?id=CVE-2026-40895 Référence CVE CVE-2026-41168 https://www.cve.org/CVERecord?id=CVE-2026-41168 Référence CVE CVE-2026-41205 https://www.cve.org/CVERecord?id=CVE-2026-41205 Référence CVE CVE-2026-41238 https://www.cve.org/CVERecord?id=CVE-2026-41238 Référence CVE CVE-2026-41239 https://www.cve.org/CVERecord?id=CVE-2026-41239 Référence CVE CVE-2026-41240 https://www.cve.org/CVERecord?id=CVE-2026-41240 Référence CVE CVE-2026-41312 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0627Multiples vulnérabilités dans les produits Splunk

ve.org/CVERecord?id=CVE-2026-3539 Référence CVE CVE-2026-3540 https://www.cve.org/CVERecord?id=CVE-2026-3540 Référence CVE CVE-2026-3541 https://www.cve.org/CVERecord?id=CVE-2026-3541 Référence CVE CVE-2026-3542 https://www.cve.org/CVERecord?id=CVE-2026-3542 Référence CVE CVE-2026-3543 https://www.cve.org/CVERecord?id=CVE-2026-3543 Référence CVE CVE-2026-3544 https://www.cve.org/CVERecord?id=CVE-2026-3544 Référence CVE CVE-2026-3545 https://www.cve.org/CVERecord?id=CVE-2026-3545 Référence CVE CVE-2026-35469 https://www.cve.org/CVERecord?id=CVE-2026-35469 Référence CVE CVE-2026-3731 https://www.cve.org/CVERecord?id=CVE-2026-3731 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-40175 https://www.cve.org/CVERecord?id=CVE-2026-40175 Référence CVE CVE-2026-40192 https://www.cve.org/CVERecord?id=CVE-2026-40192 Référence CVE CVE-2026-40200 https://www.cve.org/CVERecord?id=CVE-2026-40200 Référence CVE CVE-2026-4111 https://www.cve.org/CVERecord?id=CVE-2026-4111 Référence CVE CVE-2026-41324 https://www.cve.org/CVERecord?id=CVE-2026-41324 Référence CVE CVE-2026-42308 https://www.cve.org/CVERecord?id=CVE-2026-42308 Référence CVE CVE-2026-42309 https://www.cve.org/CVERecord?id=CVE-2026-42309 Référence CVE CVE-2026-42310 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0556Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2026-34986 Référence CVE CVE-2026-35236 https://www.cve.org/CVERecord?id=CVE-2026-35236 Référence CVE CVE-2026-35237 https://www.cve.org/CVERecord?id=CVE-2026-35237 Référence CVE CVE-2026-35238 https://www.cve.org/CVERecord?id=CVE-2026-35238 Référence CVE CVE-2026-35239 https://www.cve.org/CVERecord?id=CVE-2026-35239 Référence CVE CVE-2026-35240 https://www.cve.org/CVERecord?id=CVE-2026-35240 Référence CVE CVE-2026-35469 https://www.cve.org/CVERecord?id=CVE-2026-35469 Référence CVE CVE-2026-3644 https://www.cve.org/CVERecord?id=CVE-2026-3644 Référence CVE CVE-2026-39883 https://www.cve.org/CVERecord?id=CVE-2026-39883 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-40192 https://www.cve.org/CVERecord?id=CVE-2026-40192 Référence CVE CVE-2026-41066 https://www.cve.org/CVERecord?id=CVE-2026-41066 Référence CVE CVE-2026-4111 https://www.cve.org/CVERecord?id=CVE-2026-4111 Référence CVE CVE-2026-4224 https://www.cve.org/CVERecord?id=CVE-2026-4224 Référence CVE CVE-2026-4424 https://www.cve.org/CVERecord?id=CVE-2026-4424 Référence CVE CVE-2026-4519 https://www.cve.org/CVERecord?id=CVE-2026-4519 Référence CVE CVE-2026-4539 https://www.cve.org/CVERecord?id=CVE-2026-4539 Référence CVE CVE-2026-4786 https://www.cve.org/CVERecord?id=CVE-2026-47

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0550Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-34513 Référence CVE CVE-2026-34514 https://www.cve.org/CVERecord?id=CVE-2026-34514 Référence CVE CVE-2026-34515 https://www.cve.org/CVERecord?id=CVE-2026-34515 Référence CVE CVE-2026-34516 https://www.cve.org/CVERecord?id=CVE-2026-34516 Référence CVE CVE-2026-34517 https://www.cve.org/CVERecord?id=CVE-2026-34517 Référence CVE CVE-2026-34518 https://www.cve.org/CVERecord?id=CVE-2026-34518 Référence CVE CVE-2026-34519 https://www.cve.org/CVERecord?id=CVE-2026-34519 Référence CVE CVE-2026-34520 https://www.cve.org/CVERecord?id=CVE-2026-34520 Référence CVE CVE-2026-34525 https://www.cve.org/CVERecord?id=CVE-2026-34525 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-40087 https://www.cve.org/CVERecord?id=CVE-2026-40087 Référence CVE CVE-2026-40175 https://www.cve.org/CVERecord?id=CVE-2026-40175 Référence CVE CVE-2026-4539 https://www.cve.org/CVERecord?id=CVE-2026-4539 Référence CVE CVE-2026-4800 https://www.cve.org/CVERecord?id=CVE-2026-4800 Gestion détaillée du document le 07 mai 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 la Défe

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-011292Cryptographyにおけるバッファエラーの脆弱性

cryptographyは、Python開発者に暗号プリミティブとレシピを提供するために設計されたパッケージです。バージョン45.0.0から46.0.7未満の間に、Pythonバッファ（例えばHash.update()など）を受け入れるAPIに非連続バッファが渡されると、バッファオーバーフローが発生する可能性がありました。この脆弱性は46.0.7で修正されました。

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0259Kwetsbaarheden verholpen in Oracle Analytics

Certain versions of the cryptography package, specifically from 45.0.0 to before 46.0.7, contain a buffer overflow vulnerability in APIs like Hash.update() when handling non-contiguous buffers on Python versions greater than 3.11, leading to out-of-bounds memory reads and potential crashes.

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0256Kwetsbaarheden verholpen in Oracle Communications

Certain versions of the cryptography package, specifically from 45.0.0 to before 46.0.7, contain a buffer overflow vulnerability in APIs like Hash.update() when handling non-contiguous buffers on Python versions greater than 3.11, leading to out-of-bounds memory reads and potential crashes.

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, refer to Ansible Automation Platform documentation.
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 8 Apr 2026 · Last source change 10 Sept 2026, 12:04 UTC · CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

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-2026-20640
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. Vendor guidanceAuthoritative vendor guidance changed: added remediation: github.com/GHSA-p423-j2cm-9vmq.
    Before
    vendor advisory: github.com/GHSA-p423-j2cm-9vmq
    After
    remediation: github.com/GHSA-p423-j2cm-9vmq · vendor advisory: github.com/GHSA-p423-j2cm-9vmq
    security-advisories@github.com ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    >= 45.0.0, < 46.0.7 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    cryptography: >= 45.0.0, < 46.0.7 · Fixed: RHSA-2026:24761: Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9
    CNA ↗
  3. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    security-advisories@github.com ↗
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-2026-20640↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference · GitHub GHSA-P423-J2CM-9VMQ↗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-2026-39892 · cve.blacktree.nl