Is transformers affected by CVE-2025-6638?

PyPI transformers is affected in <4.53.0.

Is CVE-2025-6638 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.5%.

medium

CVE-2025-6638

Q: Is CVE-2025-6638 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.5%.

PyPI · transformers

Summary

Hugging Face Transformers is vulnerable to ReDoS through its MarianTokenizer

Severity: medium
EPSS: 0.5% (p38)
Also known as: GHSA-59p9-h35m-wg4g
Published: 2025-09-12

References

https://nvd.nist.gov/vuln/detail/CVE-2025-6638
https://github.com/huggingface/transformers/commit/47c34fba5c303576560cb29767efb452ff12b8be
https://github.com/huggingface/transformers/commit/d37f7517972f67e3f2194c000ed0f87f064e5099

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.