CVE-2026-61712
mediumpriority · track · 0EPSS 0.004 · 34 %ileDEFRRUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 0.6–5.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (40)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2111docker: Mehrere SchwachstellenDeutsch2026-06-28csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in docker ausnutzen, um einen Denial of Service Angriff durchzuführen oder Sicherheitsmaßnahmen zu umgehen.
- GHSA-72x6-4j93-7w86BuildKit has a possible runtime DoS via unbounded group parsing2026-08-19ghsa · osvUS
### Impact Maliciously crafted base image or build can cause a Denial of Service (DoS) condition. When creating a container from this image, memory exhaustion occurs, leading to an Out Of Memory (OOM) kill of the buildkitd process. ### Patches Issue is fixed in BuildKit v0.31.1+ ### Workarounds Use trusted build sources. ### References This is BuildKit variant of containerd advisory https://github.com/containerd/containerd/security/advisories/GHSA-jpcc-p29g-p8mq
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
- GO-2026-6256BuildKit has a possible runtime DoS via unbounded group parsing in github.com/moby/buildkit2026-08-25vendor · osvUS
BuildKit has a possible runtime DoS via unbounded group parsing in github.com/moby/buildkit
also known as (3)
Other names and identifiers for this entity.
- BDU:2026-15383fstec_bdu
- GHSA-72x6-4j93-7w86osv
- GO-2026-6256osv
sources
Which sources assert this record, and when.
references (4) nvd
External citations — patches, advisories, analysis.
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