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High8.8Red Hat Linux

High [CVE-2026-23950] Arbitrary file overwrite via Unicode path collision race condition

This high-severity Red Hat Linux advisory covers CVE-2026-23950 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Dev Spaces 3.27.

CVE-2026-23950 Published Jan 20, 2026
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Arbitrary file overwrite via Unicode path collision race condition. Red Hat rates this important (CVSS 8.8).

Weakness: CWE-367. Affected package(s): devspaces/udi-rhel9:1774451954, rhtas/rekor-search-ui-rhel9:1770107452, rhtas/rekor-search-ui-rhel9:1770739056, linux-sgx.

Resolved in Red Hat advisory RHSA-2026:18868 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat OpenShift Dev Spaces 3.27; Red Hat Trusted Artifact Signer 1.2; and 17 more.

Affected versions
  • devspaces/udi-rhel9:1774451954
  • rhtas/rekor-search-ui-rhel9:1770107452
  • rhtas/rekor-search-ui-rhel9:1770739056
  • linux-sgx-0:2.26-7.el9
  • linux-sgx-0:2.26-7.el10

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:18868

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:18868 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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