Is pydantic-ai affected by CVE-2026-46678?

PyPI pydantic-ai is affected in >=1.56.0 <1.99.0.

Is CVE-2026-46678 being exploited?

Not on the CISA KEV list. EPSS exploit probability is not available.

medium

CVE-2026-46678

Q: Is CVE-2026-46678 being exploited?

Not on the CISA KEV list. EPSS exploit probability is not available.

PyPI · pydantic-ai • PyPI · pydantic-ai-slim

Summary

Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv4-mapped IPv6 (Incomplete fix of CVE-2026-25580)

Severity: medium
Also known as: GHSA-cqp8-fcvh-x7r3#pydantic-ai, GHSA-cqp8-fcvh-x7r3#pydantic-ai-slim
Published: 2026-05-21

References

https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-2jrp-274c-jhv3
https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-cqp8-fcvh-x7r3
https://github.com/pydantic/pydantic-ai

Related advisories

CVE-2026-25640 — high · PyPI/pydantic-ai
CVE-2026-25580 — high · PyPI/pydantic-ai

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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.