TI-2026-30787 CVE-2026-42504 · GHSA-h524-452v-82p9
Quadratic complexity in WordDecoder.DecodeHeader in mime
Priority MEDIUM 40
Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.
Red Hat OpenShift API for Data Protection
Released 2026-10-28 · Red Hat rating Important · View on Red Hat →
Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.
When returning errors, functions in the net/textproto package would include its input as part of the error.
(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries.