Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.
Patch available
Distribution package intelligence
Ubuntu vendor package status
Canonical’s release and source-package findings are shown separately from local repository availability.
1 package state
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.
Ubuntu release
Source package
Vendor state
Fixed version
Evidence
Ubuntu 24.04 LTSnoble · standard archive
curl
Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.
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-2026-8458 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitycurl: libcurl: Unauthorized connection reuse due to a logical error
19 known affected
The vendor explicitly identifies these products as affected by this CVE.
curl as a component of Red Hat Enterprise Linux 10
curl.src as a component of Red Hat Enterprise Linux 10
libcurl as a component of Red Hat Enterprise Linux 10
libcurl-devel as a component of Red Hat Enterprise Linux 10
libcurl-minimal as a component of Red Hat Enterprise Linux 10
curl as a component of Red Hat Enterprise Linux 8
curl.src as a component of Red Hat Enterprise Linux 8
libcurl as a component of Red Hat Enterprise Linux 8
libcurl-devel as a component of Red Hat Enterprise Linux 8
libcurl-minimal as a component of Red Hat Enterprise Linux 8
curl as a component of Red Hat Enterprise Linux 9
curl-minimal as a component of Red Hat Enterprise Linux 9
Summary
A flaw was found in libcurl. A logical error in the connection pooling mechanism may cause libcurl to reuse an authenticated connection for an unintended service. This could allow an application to wrongfully reuse an existing connection to the same server that was authenticated for a different service, potentially leading to unauthorized access or information disclosure.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Optional official sources
National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.
Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.
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-2026-41504
No EUVD known-exploited evidence
ENISA has published the identifier mapping but no EUVD description has been stored yet.
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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days
Medium 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
libcurl might in some circumstances reuse the wrong connection when asked to
do Negotiate-authenticated ones, even when they are set to use different
'services'.
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criteria must be met. Due to a logical
error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different services.
What
libcurl might in some circumstances reuse the wrong connection when asked to
do Negotiate-authenticated ones, even when they are set to use different
'services'.
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criteria must be met. Due to a logical
error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different services.
Why
The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.
How
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
libcurl might in some circumstances reuse the wrong connection when asked to
do Negotiate-authenticated ones, even when they are set to use different
'services'.
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criteria must be met. Due to a logical
error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different services.
Why
The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.
How
An attacker operating through a network path may attempt exploitation with low privileges. 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
A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.
Likely attack path
a network path → Exposure of Data Element to Wrong Session → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
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-488: Exposure of Data Element to Wrong Session. The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.
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:L/UI:N/S:U/C:N/I:H/A:N
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.PRLowPrivileges required: The attacker needs basic user-level 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.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: 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.
NetworkCWE-488Public exploit reference
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-41504Official EUVD mapping
0 linked advisory records.
Official EUVD recordBSI · German · WID-SEC-W-2026-2065cURL: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand zu verursachen.
Official advisoryCERT-FR · French · CERTFR-2026-AVI-1125Multiples vulnérabilités dans les produits VMware
ecord?id=CVE-2026-67420
Référence CVE CVE-2026-67421
https://www.cve.org/CVERecord?id=CVE-2026-67421
Référence CVE CVE-2026-71309
https://www.cve.org/CVERecord?id=CVE-2026-71309
Référence CVE CVE-2026-71311
https://www.cve.org/CVERecord?id=CVE-2026-71311
Référence CVE CVE-2026-71312
https://www.cve.org/CVERecord?id=CVE-2026-71312
Référence CVE CVE-2026-71313
https://www.cve.org/CVERecord?id=CVE-2026-71313
Référence CVE CVE-2026-7168
https://www.cve.org/CVERecord?id=CVE-2026-7168
Référence CVE CVE-2026-8286
https://www.cve.org/CVERecord?id=CVE-2026-8286
Référence CVE CVE-2026-84304
https://www.cve.org/CVERecord?id=CVE-2026-84304
Référence CVE CVE-2026-8458
https://www.cve.org/CVERecord?id=CVE-2026-8458
Référence CVE CVE-2026-8924
https://www.cve.org/CVERecord?id=CVE-2026-8924
Référence CVE CVE-2026-8927
https://www.cve.org/CVERecord?id=CVE-2026-8927
Référence CVE CVE-2026-8932
https://www.cve.org/CVERecord?id=CVE-2026-8932
Référence CVE CVE-2026-9547
https://www.cve.org/CVERecord?id=CVE-2026-9547
Gestion détaillée du document
le 07 septembre 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 Déf
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0958Multiples vulnérabilités dans les produits IBM
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0873Multiples vulnérabilités dans Microsoft Azure Linux
de sécurité Microsoft Azure Linux CVE-2026-58013 du 01 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-58014 du 01 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-58015 du 01 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-58016 du 01 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-57585 du 03 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-10536 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-12064 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-8286 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-8458 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-8926 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-8927 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-8932 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-9079 du 04 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-12480 du 07 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-54886 du 07 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-54908 du 09 juillet 2026
Bulletin de sécurité Microsoft Azure Linux CVE-2026-56000 du 09 juillet 2026
Bulletin de sécuri
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0797Multiples vulnérabilités dans cURL et libcurl
rabilités dans cURL et libcurl
Gestion du document
Référence
CERTFR-2026-AVI-0797
Titre
Multiples vulnérabilités dans cURL et libcurl
Date de la première version 24 juin 2026
Date de la dernière version 24 juin 2026
Source(s)
Bulletin de sécurité Curl CVE-2026-10536 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-11352 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-11564 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-11586 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-11856 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-12064 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-8286 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-8458 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-8924 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-8925 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-8926 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-8927 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-8932 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-9079 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-9080 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-9545 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-9546 du 24 juin 2026
Bulletin de sécurité Curl CVE-2026-9547 du 24 juin 2026
Une gestion de version détaillée se trouve à la fin de ce document.
Risqu
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
curl as a component of Red Hat Enterprise Linux 10; curl.src as a component of Red Hat Enterprise Linux 10; libcurl as a component of Red Hat Enterprise Linux 10; libcurl-devel as a component of Red Hat Enterprise Linux 10; libcurl-minimal as a component of Red Hat Enterprise Linux 10; curl as a component of Red Hat Enterprise Linux 8; curl.src as a component of Red Hat Enterprise Linux 8; libcurl as a component of Red Hat Enterprise Linux 8; libcurl-devel as a component of Red Hat Enterprise Linux 8; libcurl-minimal as a component of Red Hat Enterprise Linux 8; curl as a component of Red Hat Enterprise Linux 9; curl-minimal as a component of Red Hat Enterprise Linux 9; curl.src as a component of Red Hat Enterprise Linux 9; libcurl as a component of Red Hat Enterprise Linux 9; libcurl-devel as a component of Red Hat Enterprise Linux 9; libcurl-minimal as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces
Fixed
curl-main@aarch64 as a component of Red Hat Hardened Images; curl-main@src as a component of Red Hat Hardened Images; curl-main@x86_64 as a component of Red Hat Hardened Images; rust-main@aarch64 as a component of Red Hat Hardened Images; rust-main@noarch as a component of Red Hat Hardened Images; rust-main@src as a component of Red Hat Hardened Images; rust-main@x86_64 as a component of Red Hat Hardened Images; Red Hat JBoss Core Services 2.4.62.SP5
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
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 3 Jul 2026 · Last source change 6 Jul 2026, 17:32 UTC · CWE-488 · Exposure of Data Element to Wrong Session
CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
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-2026-41504
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Affected versionsThe structured affected or fixed version information changed.
Before
curl as a component of Red Hat Enterprise Linux 10; curl.src as a component of Red Hat Enterprise Linux 10; libcurl as a component of Red Hat Enterprise Linux 10; libcurl-devel as a component of Red Hat Enterprise Linux 10; libcurl-minimal as a component of Red Hat Enterprise Linux 10; curl as a component of Red Hat Enterprise Linux 8; curl.src as a component of Red Hat Enterprise Linux 8; libcurl as a component of Red Hat Enterprise Linux 8; libcurl-devel as a component of Red Hat Enterprise Linux 8; libcurl-minimal as a component of Red Hat Enterprise Linux 8; curl as a component of Red Hat Enterprise Linux 9; curl-minimal as a component of Red Hat Enterprise Linux 9; curl.src as a component of Red Hat Enterprise Linux 9; libcurl as a component of Red Hat Enterprise Linux 9; libcurl-devel as a component of Red Hat Enterprise Linux 9; libcurl-minimal as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces · Fixed: curl-main@aarch64 as a component of Red Hat Hardened Images; curl-main@src as a component of Red Hat Hardened Images; curl-main@x86_64 as a component of Red Hat Hardened Images; rust-main@aarch64 as a component of Red Hat Hardened Images; rust-main@noarch as a component of Red Hat Hardened Images; rust-main@src as a component of Red Hat Hardened Images; rust-main@x86_64 as a component of Red Hat Hardened Images; Red Hat JBoss Core Services 2.4.62.SP5
After
curl as a component of Red Hat Enterprise Linux 10; curl.src as a component of Red Hat Enterprise Linux 10; libcurl as a component of Red Hat Enterprise Linux 10; libcurl-devel as a component of Red Hat Enterprise Linux 10; libcurl-minimal as a component of Red Hat Enterprise Linux 10; curl as a component of Red Hat Enterprise Linux 8; curl.src as a component of Red Hat Enterprise Linux 8; libcurl as a component of Red Hat Enterprise Linux 8; libcurl-devel as a component of Red Hat Enterprise Linux 8; libcurl-minimal as a component of Red Hat Enterprise Linux 8; curl as a component of Red Hat Enterprise Linux 9; curl-minimal as a component of Red Hat Enterprise Linux 9; curl.src as a component of Red Hat Enterprise Linux 9; libcurl as a component of Red Hat Enterprise Linux 9; libcurl-devel as a component of Red Hat Enterprise Linux 9; libcurl-minimal as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces · Fixed: curl-main@aarch64 as a component of Red Hat Hardened Images; curl-main@src as a component of Red Hat Hardened Images; curl-main@x86_64 as a component of Red Hat Hardened Images; rust-main@aarch64 as a component of Red Hat Hardened Images; rust-main@noarch as a component of Red Hat Hardened Images; rust-main@src as a component of Red Hat Hardened Images; rust-main@x86_64 as a component of Red Hat Hardened Images; Red Hat JBoss Core Services 2.4.62.SP5
Affected versionsThe structured affected or fixed version information changed.
Before
curl as a component of Red Hat Enterprise Linux 10; curl.src as a component of Red Hat Enterprise Linux 10; libcurl as a component of Red Hat Enterprise Linux 10; libcurl-devel as a component of Red Hat Enterprise Linux 10; libcurl-minimal as a component of Red Hat Enterprise Linux 10; curl as a component of Red Hat Enterprise Linux 8; curl.src as a component of Red Hat Enterprise Linux 8; libcurl as a component of Red Hat Enterprise Linux 8; libcurl-devel as a component of Red Hat Enterprise Linux 8; libcurl-minimal as a component of Red Hat Enterprise Linux 8; curl as a component of Red Hat Enterprise Linux 9; curl-minimal as a component of Red Hat Enterprise Linux 9; curl.src as a component of Red Hat Enterprise Linux 9; libcurl as a component of Red Hat Enterprise Linux 9; libcurl-devel as a component of Red Hat Enterprise Linux 9; libcurl-minimal as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces · Fixed: curl-main@aarch64 as a component of Red Hat Hardened Images; curl-main@src as a component of Red Hat Hardened Images; curl-main@x86_64 as a component of Red Hat Hardened Images; rust-main@aarch64 as a component of Red Hat Hardened Images; rust-main@noarch as a component of Red Hat Hardened Images; rust-main@src as a component of Red Hat Hardened Images; rust-main@x86_64 as a component of Red Hat Hardened Images
After
curl as a component of Red Hat Enterprise Linux 10; curl.src as a component of Red Hat Enterprise Linux 10; libcurl as a component of Red Hat Enterprise Linux 10; libcurl-devel as a component of Red Hat Enterprise Linux 10; libcurl-minimal as a component of Red Hat Enterprise Linux 10; curl as a component of Red Hat Enterprise Linux 8; curl.src as a component of Red Hat Enterprise Linux 8; libcurl as a component of Red Hat Enterprise Linux 8; libcurl-devel as a component of Red Hat Enterprise Linux 8; libcurl-minimal as a component of Red Hat Enterprise Linux 8; curl as a component of Red Hat Enterprise Linux 9; curl-minimal as a component of Red Hat Enterprise Linux 9; curl.src as a component of Red Hat Enterprise Linux 9; libcurl as a component of Red Hat Enterprise Linux 9; libcurl-devel as a component of Red Hat Enterprise Linux 9; libcurl-minimal as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces · Fixed: curl-main@aarch64 as a component of Red Hat Hardened Images; curl-main@src as a component of Red Hat Hardened Images; curl-main@x86_64 as a component of Red Hat Hardened Images; rust-main@aarch64 as a component of Red Hat Hardened Images; rust-main@noarch as a component of Red Hat Hardened Images; rust-main@src as a component of Red Hat Hardened Images; rust-main@x86_64 as a component of Red Hat Hardened Images; Red Hat JBoss Core Services 2.4.62.SP5
Affected versionsThe structured affected or fixed version information changed.
Before
curl as a component of Red Hat Enterprise Linux 10; curl.src as a component of Red Hat Enterprise Linux 10; libcurl as a component of Red Hat Enterprise Linux 10; libcurl-devel as a component of Red Hat Enterprise Linux 10; libcurl-minimal as a component of Red Hat Enterprise Linux 10; curl as a component of Red Hat Enterprise Linux 8; curl.src as a component of Red Hat Enterprise Linux 8; libcurl as a component of Red Hat Enterprise Linux 8; libcurl-devel as a component of Red Hat Enterprise Linux 8; libcurl-minimal as a component of Red Hat Enterprise Linux 8; curl as a component of Red Hat Enterprise Linux 9; curl-minimal as a component of Red Hat Enterprise Linux 9; curl.src as a component of Red Hat Enterprise Linux 9; libcurl as a component of Red Hat Enterprise Linux 9; libcurl-devel as a component of Red Hat Enterprise Linux 9; libcurl-minimal as a component of Red Hat Enterprise Linux 9; rhcos as a component of Red Hat OpenShift Container Platform 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces · Fixed: curl-main@aarch64 as a component of Red Hat Hardened Images; curl-main@src as a component of Red Hat Hardened Images; curl-main@x86_64 as a component of Red Hat Hardened Images; rust-main@aarch64 as a component of Red Hat Hardened Images; rust-main@noarch as a component of Red Hat Hardened Images; rust-main@src as a component of Red Hat Hardened Images; rust-main@x86_64 as a component of Red Hat Hardened Images
After
curl as a component of Red Hat Enterprise Linux 10; curl.src as a component of Red Hat Enterprise Linux 10; libcurl as a component of Red Hat Enterprise Linux 10; libcurl-devel as a component of Red Hat Enterprise Linux 10; libcurl-minimal as a component of Red Hat Enterprise Linux 10; curl as a component of Red Hat Enterprise Linux 8; curl.src as a component of Red Hat Enterprise Linux 8; libcurl as a component of Red Hat Enterprise Linux 8; libcurl-devel as a component of Red Hat Enterprise Linux 8; libcurl-minimal as a component of Red Hat Enterprise Linux 8; curl as a component of Red Hat Enterprise Linux 9; curl-minimal as a component of Red Hat Enterprise Linux 9; curl.src as a component of Red Hat Enterprise Linux 9; libcurl as a component of Red Hat Enterprise Linux 9; libcurl-devel as a component of Red Hat Enterprise Linux 9; libcurl-minimal as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces · Fixed: curl-main@aarch64 as a component of Red Hat Hardened Images; curl-main@src as a component of Red Hat Hardened Images; curl-main@x86_64 as a component of Red Hat Hardened Images; rust-main@aarch64 as a component of Red Hat Hardened Images; rust-main@noarch as a component of Red Hat Hardened Images; rust-main@src as a component of Red Hat Hardened Images; rust-main@x86_64 as a component of Red Hat Hardened Images
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.
CVE-2026-8458: wrong reuse for different services | BlackTree
