Vulnerability in Opencontainers Runc
CVE-2025-31133
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the sour…
EPSS: 0.000 (6.0th percentile) — read the EPSS interpretation.
Affected products
- Opencontainers Runc — versions < 1.2.8, >= 1.3.0-rc.1, < 1.3.3, >= 1.4.0-rc.1, <= 1.4.0-rc.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2 (x_refsource_CONFIRM)
- https://github.com/opencontainers/runc/commit/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/5d7b2424072449872d1cd0c937f2ca25f418eb66 (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/8476df83b534a2522b878c0507b3491def48db9f (x_refsource_MISC)
- https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-31133?
- CVE-2025-31133 is a vulnerability in Opencontainers Runc, classified under UNIX Symbolic Link (Symlink) Following. Published 2025-11-06.
- Is CVE-2025-31133 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.