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Advisory severityHigh7.5Red Hat Linux

High [CVE-2026-63209] Denial of Service via integer overflow in dictionary processing

This high-severity Red Hat Linux advisory covers CVE-2026-63209; related products: Red Hat Hardened Images.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-63209 Source published Source updated

VulniPulse record published Record updated

CVE-2026-63209
Related products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

Denial of Service via integer overflow in dictionary processing. Red Hat rates this important (CVSS 7.5).

Weakness: CWE-823. Red Hat lists fixing advisory RHSA-2026:72492 with package nats-server2-12-main-2.12.15-0.1.hum1, podman-main-6.1.2-1.hum1, helm4-main-4.3.0-0.2.hum1, k6v1-main-1.8.1-0.1.hum1.

Affected product named by the advisory: Red Hat Hardened Images.

Affected versions
  • < 1.18.7

Official advisory · high-confidence parse· fetched 4 days ago·verify at source

Fixed versions
  • nats-server2-12-main-2.12.15-0.1.hum1
  • podman-main-6.1.2-1.hum1
  • helm4-main-4.3.0-0.2.hum1
  • k6v1-main-1.8.1-0.1.hum1
  • k6v2-main-2.3.0-0.1.hum1
  • helm3-main-3.22.0-0.2.hum1
  • grype-main-0.119.0-0.1.hum1
  • trivy-main-0.74.0-0.4.hum1
  • loki3-7-main-3.7.8-0.3.hum1
  • opentelemetry-collector-main-0.161.0-0.1.hum1
  • loki3-6-main-3.6.17-0.3.hum1
  • grafana13-2-main-13.2.1-0.8.hum1
  • opentelemetry-collector-contrib-main-0.161.0-0.1.hum1
  • buildah-main-1.45.1-1.hum1
  • nats-server2-14-main-2.14.7-0.1.hum1
  • tempo2-10-main-2.10.8-0.4.hum1
  • grafana12-4-main-12.4.10-0.9.hum1
  • syft-main-1.52.0-0.1.hum1
  • opentelemetry-collector-k8s-main-0.161.0-0.1.hum1
  • grafana13-1-main-13.1.6-0.4.hum1
  • RHSA-2026:72492

Official advisory · high-confidence parse· fetched 4 days ago·verify at source

Mitigation

Upgrade to a fixed release: nats-server2-12-main-2.12.15-0.1.hum1, podman-main-6.1.2-1.hum1, helm4-main-4.3.0-0.2.hum1, k6v1-main-1.8.1-0.1.hum1, k6v2-main-2.3.0-0.1.hum1, helm3-main-3.22.0-0.2.hum1. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 4 days ago·verify at source

Discussion(0)

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