How severe is CVE-2026-44346?

CVE-2026-44346 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-44346 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44346?

CVE-2026-44346 affects Bentoml. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44346?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-44346 have an EU (EUVD) identifier?

Yes. CVE-2026-44346 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32609.

When was CVE-2026-44346 published?

CVE-2026-44346 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-44346

CVE-2026-44346 is a high-severity vulnerability in Bentoml with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32609
Weakness: CWE-78
Affected product: Bentoml
Published: 2026-05-27
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-44346?: 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.
How severe is CVE-2026-44346?: CVE-2026-44346 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-44346 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44346?: CVE-2026-44346 affects Bentoml. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44346?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-44346 have an EU (EUVD) identifier?: Yes. CVE-2026-44346 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32609.
When was CVE-2026-44346 published?: CVE-2026-44346 was published on 2026-05-27 and last updated on 2026-06-17.

References

https://github.com/bentoml/BentoML/security/advisories/GHSA-w2pm-x38x-jp44

Affected products (1)

cpe:2.3:a:bentoml:bentoml:*:*:*:*:*:*:*:*

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