{"id":"CVE-2024-40635","aliases":["GHSA-265r-hfxg-fhmg","GO-2025-3528"],"title":"containerd has an integer overflow in User ID handling","summary":"containerd has an integer overflow in User ID handling","severity":"medium","cvss":4.6,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","vendor":"containerd","product":"github.com/containerd/containerd/v2","ecosystem":"go","affected":["github.com/containerd/containerd/v2 < 2.0.4","github.com/containerd/containerd >= 1.7.0-beta.0, < 1.7.27","github.com/containerd/containerd < 1.6.38"],"patched":["github.com/containerd/containerd/v2 2.0.4","github.com/containerd/containerd 1.7.27","github.com/containerd/containerd 1.6.38"],"published":"2025-03-17","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:06.145474067Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-265r-hfxg-fhmg","references":[{"url":"https://github.com/containerd/containerd/security/advisories/GHSA-265r-hfxg-fhmg"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40635"},{"url":"https://github.com/containerd/containerd/commit/05044ec0a9a75232cad458027ca83437aae3f4da"},{"url":"https://github.com/containerd/containerd/commit/1a43cb6a1035441f9aca8f5666a9b3ef9e70ab20"},{"url":"https://github.com/containerd/containerd/commit/cf158e884cfe4812a6c371b59e4ea9bc4c46e51a"},{"url":"https://github.com/containerd/containerd"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00005.html"}],"tags":["osv","go","exploit-available"],"epss":0.00294,"epssPercentile":0.22189,"exploits":{"github":1,"githubRepos":["https://github.com/yen5004/CVE-2024-40635_POC"],"checkedAt":"2026-09-21T15:27:02.536Z"},"exploitAvailable":true,"ingestedAt":"2026-09-12T03:13:01.744Z","slug":"CVE-2024-40635","body":"## Overview\n\n### Impact\nA bug was found in containerd where containers launched with a User set as a `UID:GID` larger than the maximum 32-bit signed integer can cause an overflow condition where the container ultimately runs as root (UID 0). This could cause unexpected behavior for environments that require containers to run as a non-root user.\n\n### Patches\nThis bug has been fixed in the following containerd versions: \n\n* 2.0.4 (Fixed in https://github.com/containerd/containerd/commit/1a43cb6a1035441f9aca8f5666a9b3ef9e70ab20)\n* 1.7.27 (Fixed in https://github.com/containerd/containerd/commit/05044ec0a9a75232cad458027ca83437aae3f4da)\n* 1.6.38 (Fixed in https://github.com/containerd/containerd/commit/cf158e884cfe4812a6c371b59e4ea9bc4c46e51a)\n\nUsers should update to these versions to resolve the issue.\n\n### Workarounds\nEnsure that only trusted images are used and that only trusted users have permissions to import images.\n\n### Credits\nThe containerd project would like to thank [Benjamin Koltermann](https://github.com/p4ck3t0) and [emxll](https://github.com/emxll) for responsibly disclosing this issue in accordance with the [containerd security policy](https://github.com/containerd/project/blob/main/SECURITY.md).\n\n### References\n* https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-40635\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [containerd](https://github.com/containerd/containerd/issues/new/choose)\n* Email us at [security@containerd.io](mailto:security@containerd.io)\n\nTo report a security issue in containerd:\n* [Report a new vulnerability](https://github.com/containerd/containerd/security/advisories/new)\n* Email us at [security@containerd.io](mailto:security@containerd.io)\n\n## Affected packages\n\n- `github.com/containerd/containerd/v2 < 2.0.4`\n- `github.com/containerd/containerd >= 1.7.0-beta.0, < 1.7.27`\n- `github.com/containerd/containerd < 1.6.38`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/containerd/containerd/v2 2.0.4`\n- `github.com/containerd/containerd 1.7.27`\n- `github.com/containerd/containerd 1.6.38`","depth":"twilight","depthScore":37,"depthScoreParts":{"impact":25.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}