Is anthropic affected by CVE-2026-34452?

PyPI anthropic is affected in >=0.86.0 <0.87.0.

Is CVE-2026-34452 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.1%.

medium

CVE-2026-34452

Q: Is CVE-2026-34452 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.1%.

PyPI · anthropic

Summary

Claude SDK for Python: Memory Tool Path Validation Race Condition Allows Sandbox Escape

Severity: medium
EPSS: 0.1% (p4)
Also known as: GHSA-w828-4qhx-vxx3
Published: 2026-04-01

References

https://github.com/anthropics/anthropic-sdk-python/security/advisories/GHSA-w828-4qhx-vxx3
https://nvd.nist.gov/vuln/detail/CVE-2026-34452
https://github.com/anthropics/anthropic-sdk-python/commit/6599043eee6e86dce16953fcd1fd828052052be6

Related advisories

CVE-2026-34450 — medium · PyPI/anthropic

Is your project exposed to this? Stateward checks every dependency on every pull request and flags it only if your code actually reaches it.

Check my repo

Summarize with AI

ChatGPT Claude Perplexity

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.