Red Hat Security AdvisoryRHSA-2026:79039
OpenShift Container Platform 4.18.57 bug fix and security update
Released 2026-10-15 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat OpenShift Container Platform 4.18 registry.redhat.io/openshift4/frr-rhel9, registry.redhat.io/openshift4/oc-mirror-plugin-rhel9, registry.redhat.io/openshift4/ose-agent-installer-node-agent-rhel9 +18
Fixes 13 records
Priority MEDIUM 48
When adding a key to a remote agent constraint extensions such as [email protected] were not serialized in the request.
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00683 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-502
Priority MEDIUM 48
The Verify() method for FIDO/U2F security key types ([email protected], [email protected]) did not check the User Presence flag.
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00478 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-862
Priority MEDIUM 47
The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label.
CVSS 3.1CRITICAL 9.6· Network · Low privileges · No interaction · EPSS 0.01834 · Published 2026-05-22 · Partial fix · 1.25.13, 1.26.6 +2 CWE-1289
Priority MEDIUM 46
A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop.
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00683 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-119
Priority MEDIUM 44
HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory…
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00484 · Published 2026-06-18 · Partial fix CWE-476
Priority MEDIUM 40
A flaw was found in openshift/oauth-server.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00724 · Published 2026-09-01 · Fixed in 1791839120, 1791598539 +6 CWE-407
Priority MEDIUM 40
When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.0084 · Published 2026-05-07 · Partial fix · 0.53.0, 1.25.10 +1 CWE-835
Priority LOW 39
An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00473 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-704
Priority LOW 39
Prometheus is an open-source monitoring system and time series database.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00352 · Published 2026-05-04 · Partial fix · 3.5.3, 3.11.3 +1 CWE-200
Priority LOW 39
The RSA and DSA public key parsers did not enforce size limits on key parameters.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00467 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-347
Priority LOW 35
A flaw was found in openshift/oc-mirror.
CVSS 3.1HIGH 7.4· Network · No auth · No interaction · EPSS 0.00377 · Published 2026-09-21 · Partial fix · 1790828598 CWE-347
Priority LOW 30
A flaw was found in oc-mirror.
CVSS 3.1HIGH 7.1· Adjacent network · No auth · No interaction · EPSS 0.00133 · Published 2026-10-01 · Partial fix · 1790828598, 1790778095 +3 CWE-306
Priority LOW 27
A flaw was found in oauth-proxy.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00384 · Published 2026-10-01 · Fixed in 1792974337, 1791837363 +7 CWE-601
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