CVE-2026-44346 json
BentoML: Dockerfile command injection via envs[*].name in bentofile.yaml
published 2026-05-11 5 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-32609 , GHSA-w2pm-x38x-jp44 , PYSEC-2026-190
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.39, a malicious bentofile.yaml containing a newline-injected value in envs[*].name produces unquoted RUN directives in the BentoML-generated Dockerfile. When the victim runs bentoml containerize on the imported bento, those RUN directives execute on the host during docker build. This vulnerability is fixed in 1.4.39.
Patch / fix
- pypi bentoml 1.4.39
- bentoml bentoml 1.4.39
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/bentoml/BentoML/security/advisories/GHSA-w2pm-x38x-jp44 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | bentoml | <1.4.39 |
1.4.39 |
Affected products
- bentoml BentoML
Classification
References
-
github.com
/bentoml/BentoML/security/advisories/GHSA-w2pm-x38x-jp44
exploit, web, mitigation, vendor-advisory, evidence
-
github.com
/bentoml/BentoML/security/advisories/GHSA-78f9-r8mh-4xm2
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-44346
advisory
-
github.com
/bentoml/BentoML
package
-
github.com
/pypa/advisory-database/tree/main/vulns/bentoml/PYSEC-2026-190.yaml
web
Sources
- CVE List CVE-2026-44346
- GitHub Advisory GHSA-w2pm-x38x-jp44
- NVD CVE-2026-44346
- OSV PYSEC-2026-190
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.