BentoML through 1.4.39 contains a Dockerfile instruction injection vulnerability that allows attackers to add arbitrary build instructions by embedding newlines in docker.env mapping keys rendered by the legacy base.j2 template. Attackers can supply a crafted bentofile.yaml or imported bento archive so that bentoml containerize executes injected RUN instructions during docker build, accessing build secrets and poisoning images.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 3
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 18:08
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-19 21:13
- First seenCVSS 8.5NVD modified 2026-10-19 14:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 7
- https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/bento/build_config.py
- https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/container/__init__.py
- https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/container/frontend/dockerfile/templates/base.j2
- https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/container/generate.py
- https://github.com/geo-chen/oss/blob/main/BentoML.md
- https://www.vulncheck.com/advisories/bentoml-through-1.4.39-dockerfile-instruction-injection-via-docker-env-keys
- https://github.com/geo-chen/oss/blob/main/BentoML.md