How severe is CVE-2026-35043?

CVE-2026-35043 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-35043 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35043?

CVE-2026-35043 affects Bentoml. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35043?

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-2026-35043 have an EU (EUVD) identifier?

Yes. CVE-2026-35043 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19384.

When was CVE-2026-35043 published?

CVE-2026-35043 was published on 2026-04-06 and last updated on 2026-06-17.

CVE-2026-35043

CVE-2026-35043 is a high-severity vulnerability in Bentoml with a CVSS 3.x base score of 7.8. 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 7.8)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19384
Weakness: CWE-78
Affected product: Bentoml
Published: 2026-04-06
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 1.4.38, the cloud deployment path in src/bentoml/_internal/cloud/deployment.py was not included in the fix for CVE-2026-33744. Line 1648 interpolates system_packages directly into a shell command using an f-string without any quoting. The generated script is uploaded to BentoCloud as setup.sh and executed on the cloud build infrastructure during deployment, making this a remote code execution on the CI/CD tier. This vulnerability is fixed in 1.4.38.

Frequently asked questions

What is CVE-2026-35043?: BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.38, the cloud deployment path in src/bentoml/_internal/cloud/deployment.py was not included in the fix for CVE-2026-33744. Line 1648 interpolates system_packages directly into a shell command using an f-string without any quoting. The generated script is uploaded to BentoCloud as setup.sh and executed on the cloud build infrastructure during deployment, making this a remote code execution on the CI/CD tier. This vulnerability is fixed in 1.4.38.
How severe is CVE-2026-35043?: CVE-2026-35043 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-35043 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35043?: CVE-2026-35043 affects Bentoml. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35043?: 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-2026-35043 have an EU (EUVD) identifier?: Yes. CVE-2026-35043 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19384.
When was CVE-2026-35043 published?: CVE-2026-35043 was published on 2026-04-06 and last updated on 2026-06-17.

References

https://github.com/bentoml/BentoML/security/advisories/GHSA-fgv4-6jr3-jgfw

Affected products (1)

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

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