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Advisory record · GHSA-xr7r-f8xq-vfvv

runc vulnerable to container breakout through process.cwd trickery and leaked fds

CVSS 8.6 HighCriticalEPSS 0.19 · 97th percentile

Critical, because:

  • CVSS score 8.6 (7.0 or more) and EPSS 0.19 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the GitHub Advisory Database at 31 Jan 2024, 22:44 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/opencontainers/runcGo>=1.0.0-rc93, <1.1.121.1.12
Identifiers
GHSA-xr7r-f8xq-vfvv · CVE-2024-21626 · GO-2024-2491
Weakness (CWE)
CWE-200 · CWE-403 · CWE-668
Tags
Published
31 Jan 2024
Updated
10 Sept 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.6 High 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.19, the 97th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:15 UTC First seen by agentprime
  2. 31 Oct 2026, 14:15 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.