What is CVE-2026-94440?

CVE-2026-94440 is a high-severity vulnerability in Go Standard Library Mime/multipart, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-10-08.

How severe is CVE-2026-94440?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Go Standard Library Mime/multipart

CVE-2026-94440

Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.

Published 2026-10-08 · last modified 2026-10-09.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

Frequently asked questions

What is CVE-2026-94440?: CVE-2026-94440 is a high-severity vulnerability in Go Standard Library Mime/multipart, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-10-08.
How severe is CVE-2026-94440?: High severity. CVSS v3 base score is 7.5 out of 10.