Red Hat Security AdvisoryRHSA-2026:66377
OpenShift Container Platform 4.20.38 bug fix and security update
Released 2026-09-15 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat OpenShift Container Platform 4.20 registry.redhat.io/openshift4/aws-karpenter-provider-aws-rhel9, registry.redhat.io/openshift4/aws-kms-encryption-provider-rhel9, registry.redhat.io/openshift4/azure-kms-encryption-provider-rhel9 +47
Fixes 12 records
Priority HIGH 77
sqlparse is a non-validating SQL parser module for Python.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00332 · Published 2026-08-17 · Partial fix · 0.6.0 CWE-1333
Priority HIGH 77
linkify-it is a links recognition library with full Unicode support.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00394 · Published 2026-07-14 · Partial fix · 5.0.1 CWE-1333
Priority HIGH 69
tmp is a temporary file and directory creator for node.js.
CVSS 4.0HIGH 7.7· Network · No auth · No interaction · EPSS 0.00434 · Published 2026-06-11 · Partial fix · 0.2.6 CWE-22
Priority MEDIUM 42
containerd is an open-source container runtime.
CVSS 4.0CRITICAL 9.4· Local · No auth · No interaction · EPSS 0.00176 · Published 2026-07-01 · Partial fix · 1.7.33, 2.0.10 +3 CWE-20
Priority MEDIUM 40
Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00568 · Published 2026-08-13 · Partial fix · 1.25.13, 1.26.6 +1 CWE-770
Priority MEDIUM 40
Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00568 · Published 2026-08-13 · Partial fix · 1.25.13, 1.26.6 +1 CWE-770
Priority MEDIUM 40
Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00568 · Published 2026-08-13 · Partial fix · 1.25.13, 1.26.6 +1 CWE-400
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
A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00475 · Published 2026-07-21 · Partial fix · 0.39.0 CWE-835
Priority LOW 27
Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead.
CVSS 3.1MEDIUM 5.9· Network · No auth · No interaction · EPSS 0.0055 · Published 2026-08-13 · Partial fix · 1.25.13, 1.26.6 +1 CWE-407
Priority LOW 27
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.0031 · Published 2026-08-13 · Partial fix · 1.25.13, 1.26.6 +1 CWE-79
Priority LOW 27
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00223 · Published 2026-05-22 · Partial fix · 0.55.0 CWE-1021