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Vulnerabilities

Vulnerability · CVE-2024-21626

linuxfoundation runc Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak')

Published May 7, 2024 · catalog updated May 7, 2024 · linuxfoundation runc Exposure of

Patch now

CVE-2024-21626 is in the CISA known-exploited catalog. Confirm linuxfoundation runc Exposure of against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (linuxfoundation runc Exposure of).
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
18.92%
Remediation
Fix linked
Affected products
stated runc · vendor linuxfoundation runc

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same attack could be used by a malicious image to allow a container process to gain access to the host filesystem through runc run ("attack 1"). Variants of attacks 1 and 2 could be also be used to overwr

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated runc<= 1.1.11
  • vendor linuxfoundation runcversion unspecified

How to fix CVE-2024-21626

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2024-21626 is in the CISA known-exploited catalog. Confirm linuxfoundation runc Exposure of against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with <= 1.1.11. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 18.92%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Related Odoo Git fixes

Quoted Community commit messages that cite this CVE. Presence of a commit is not proof that every edition or backport includes the fix. Enterprise proprietary diffs are never shown here. Timeline

  • Jan 31, 2024 · referenced

    update runc binary to v1.1.12

    update runc binary to v1.1.12 Update the runc binary that's used in CI and for the static packages, which includes a fix for [CVE-2024-21626]. - release notes: https://github.com/opencontainers/runc/releases/tag/v1.1.12 - full diff: https://github.com/opencontainers/runc/compare/v1.1.11...v1.1.12 [CVE-2024-21626]: https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv
    https://github.com/moby/moby/commit/44bf407d4dfb24dc8f243bad6df23163b46b78bd

Timeline

Detection, updates, and resolution for this record.

  1. May 7, 2024 · VulnCheck KEV

    Detected

    runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same

  2. May 7, 2024 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2024-21626

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2024-21626

    30-day exploitation probability 18.9%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2024-21626

    runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the h

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.