GHSA-f33j-xw62-gm9fHighCVSS 7.5
Kore before 4.3.0 contains an integer underflow vulnerability in HTTP request body handling that...
🔗 CVE IDs covered (1)
📋 Description
Kore before 4.3.0 contains an integer underflow vulnerability in HTTP request body handling that allows unauthenticated attackers to bypass http_body_max by sending more body bytes than declared. Attackers can send oversized first segments over many concurrent POST, PUT or DELETE connections, wrapping content_length to grow buffers unbounded and exhaust worker memory.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-121727
- https://github.com/jorisvink/kore/commit/1ff3c0f6f7973dc7fc8bf38369790ef2d8079b3b
- https://github.com/jorisvink/kore
- https://github.com/jorisvink/kore/blob/4.3.0-rc5/src/http.c#L934
- https://kore.io/releases/4.3.0
- https://www.vulncheck.com/advisories/kore-before-4.3.0-integer-underflow-memory-exhaustion-via-http-header-recv
- https://github.com/advisories/GHSA-f33j-xw62-gm9f