Is transformers affected by CVE-2026-1839?

PyPI transformers is affected in <5.0.0rc3.

Is CVE-2026-1839 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2026-1839

Q: Is CVE-2026-1839 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

PyPI · transformers

Summary

HuggingFace Transformers allows for arbitrary code execution in the `Trainer` class

Severity: medium
EPSS: 0.3% (p22)
Also known as: GHSA-69w3-r845-3855
Published: 2026-04-07

References

https://nvd.nist.gov/vuln/detail/CVE-2026-1839
https://github.com/huggingface/transformers/commit/03c8082ba4594c9b8d6fe190ca9bed0e5f8ca396
https://github.com/huggingface/transformers

Related advisories

CVE-2025-14930 — high · PyPI/transformers
CVE-2025-14929 — high · PyPI/transformers
CVE-2025-14928 — high · PyPI/transformers
CVE-2025-14927 — high · PyPI/transformers
CVE-2025-14926 — high · PyPI/transformers
CVE-2025-14924 — high · PyPI/transformers
CVE-2025-14921 — high · PyPI/transformers
CVE-2025-14920 — high · PyPI/transformers

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.