CVE-2026-61712

BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.1, BuildKit read attacker-controlled /etc/passwd and /etc/group files without an upper bound while resolving a username to a user identifier or group identifier in executor/oci/user.go and solver/llbsolver/ops/user_linux.go. A malicious base image or build could provide oversized files that exhausted memory during user resolution and caused out-of-memory termination of the buildkitd process. This issue is fixed in version 0.31.1.

CVSS

No CVSS.

References

Link	Resource
https://github.com/moby/buildkit/commit/408266e4ba254cecabedaacdad6905de4d2a75a1
https://github.com/moby/buildkit/commit/69a3924648e485acb3faad3081e03a8554431255
https://github.com/moby/buildkit/releases/tag/v0.31.1
https://github.com/moby/buildkit/security/advisories/GHSA-72x6-4j93-7w86

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 20:17

Updated : 2026-09-09 21:15

NVD link : CVE-2026-61712

Mitre link : CVE-2026-61712

CVE.ORG link : CVE-2026-61712

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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