Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler
OpenSSL · OpenSSL
7.5HighCVSS 3.1
Recommended action
Within 7 days
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
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-2026-34183 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityopenssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler
2 known affected
The vendor explicitly identifies these products as affected by this CVE.
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
Summary
A flaw was found in OpenSSL's QUIC PATH_CHALLENGE handler. A remote attacker can exploit this vulnerability by flooding a QUIC client or server with specially crafted PATH_CHALLENGE frames. This leads to unbounded memory allocation within the local QUIC stack, as the system continuously allocates PATH_RESPONSE frames without them being acknowledged. The primary consequence is a Denial of Service (DoS), causing the affected application to terminate abnormally due to memory exhaustion.
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.
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-2026-35479
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
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
01
What, why and how
Issue summary: Remote peer may exhaust heap memory of the QUIC
server or client by flooding it with packets containing PATH_CHALLENGE
frames.
Impact summary: A malicious remote peer can cause an unbounded
memory allocation which can lead to an abnormal termination of the
application acting as a QUIC client or server and a Denial of Service.
A remote peer may exhaust heap memory by flooding the local
QUIC stack with PATH_CHALLENGE frames. The local QUIC stack
allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.
The allocated PATH_RESPONSE frame gets freed only when the remote
peer acknowledges reception of the PATH_RESPONSE frame which will
not be done by a malicious peer.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by
this issue. The QUIC stack is outside of OpenSSL FIPS module
boundary.
What
Issue summary: Remote peer may exhaust heap memory of the QUIC
server or client by flooding it with packets containing PATH_CHALLENGE
frames.
Impact summary: A malicious remote peer can cause an unbounded
memory allocation which can lead to an abnormal termination of the
application acting as a QUIC client or server and a Denial of Service.
A remote peer may exhaust heap memory by flooding the local
QUIC stack with PATH_CHALLENGE frames. The local QUIC stack
allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.
The allocated PATH_RESPONSE frame gets freed only when the remote
peer acknowledges reception of the PATH_RESPONSE frame which will
not be done by a malicious peer.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by
this issue. The QUIC stack is outside of OpenSSL FIPS module
boundary.
Why
The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.
What
Issue summary: Remote peer may exhaust heap memory of the QUIC
server or client by flooding it with packets containing PATH_CHALLENGE
frames.
Impact summary: A malicious remote peer can cause an unbounded
memory allocation which can lead to an abnormal termination of the
application acting as a QUIC client or server and a Denial of Service.
A remote peer may exhaust heap memory by flooding the local
QUIC stack with PATH_CHALLENGE frames. The local QUIC stack
allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.
The allocated PATH_RESPONSE frame gets freed only when the remote
peer acknowledges reception of the PATH_RESPONSE frame which will
not be done by a malicious peer.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by
this issue. The QUIC stack is outside of OpenSSL FIPS module
boundary.
Why
The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.
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 → Improperly Controlled Sequential Memory Allocation → disrupt the affected service
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-1325: Improperly Controlled Sequential Memory Allocation. The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects.
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.
NetworkUnauthenticatedDenial of serviceCWE-1325
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-35479Official EUVD mapping
0 linked advisory records.
Official EUVD recordBSI · German · WID-SEC-W-2026-2919IBM App Connect Enterprise: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.
Official advisoryBSI · German · WID-SEC-W-2026-2455Oracle Solaris Drittanbieterkomponenten: Mehrere Schwachstellen
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Drittanbietern in Oracle Solaris ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
Official advisoryBSI · German · WID-SEC-W-2026-1852OpenSSL: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in OpenSSL ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand zu verursachen.
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0914Multiples vulnérabilités dans Oracle Database Server
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0792Multiples vulnérabilités dans les produits Microsoft
De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données et un problème de sécurité non spécifié par l'éditeur.
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0796Multiples vulnérabilités dans Tenable Identity Exposure
Official advisoryCERT-FR · French · CERTFR-2026-AVI-0717Multiples vulnérabilités dans OpenSSL
De multiples vulnérabilités ont été découvertes dans OpenSSL. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.
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
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
Fixed
openssl-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 77 more
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 9 Jun 2026 · Last source change 10 Jun 2026, 15:51 UTC · CWE-1325 · Improperly Controlled Sequential Memory Allocation
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-2026-35479
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
openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: openssl-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 77 more
After
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 · Fixed: openssl-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 77 more
Affected versionsThe structured affected or fixed version information changed.
Before
openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: openssl-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 74 more
After
openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: openssl-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 77 more
Affected versionsThe structured affected or fixed version information changed.
Before
rhcos as a component of Red Hat OpenShift Container Platform 4 · Fixed: openssl-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 74 more
After
openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: openssl-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debugsource-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-devel-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-libs-debuginfo-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-perl-1:3.5.5-4.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); openssl-debuginfo-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debuginfo-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); openssl-debugsource-1:3.5.5-4.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); and 74 more
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-2026-34183: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler | BlackTree
