Is mesop affected by CVE-2025-30358?

PyPI mesop is affected in <0.14.1.

Is CVE-2025-30358 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

high

CVE-2025-30358

Q: Is CVE-2025-30358 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

PyPI · mesop

Summary

Mesop Class Pollution vulnerability leads to DoS and Jailbreak attacks

Severity: high
EPSS: 0.6% (p43)
Also known as: GHSA-f3mf-hm6v-jfhh
Published: 2025-03-27

References

https://github.com/mesop-dev/mesop/security/advisories/GHSA-f3mf-hm6v-jfhh
https://nvd.nist.gov/vuln/detail/CVE-2025-30358
https://github.com/mesop-dev/mesop/commit/748e20d4a363d89b841d62213f5b0c6b4bed788f

Related advisories

CVE-2026-33057 — critical · PyPI/mesop
CVE-2026-33054 — critical · PyPI/mesop
CVE-2026-34824 — high · PyPI/mesop

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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.