Is python-multipart affected by CVE-2026-53540?

PyPI python-multipart is affected in <0.0.31.

Is CVE-2026-53540 being exploited?

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

low

CVE-2026-53540

Q: Is CVE-2026-53540 being exploited?

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

PyPI · python-multipart

Summary

python-multipart: Negative Content-Length in parse_form buffers the entire body in memory

Severity: low
Also known as: GHSA-v9pg-7xvm-68hf
Published: 2026-06-15

References

https://github.com/Kludex/python-multipart/security/advisories/GHSA-v9pg-7xvm-68hf
https://github.com/Kludex/python-multipart

Related advisories

CVE-2026-53539 — high · PyPI/python-multipart
CVE-2026-42561 — high · PyPI/python-multipart
CVE-2026-24486 — high · PyPI/python-multipart
CVE-2024-53981 — high · PyPI/python-multipart
CVE-2026-40347 — medium · PyPI/python-multipart

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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.