NIXPKGS-2026-1060

GitHub issue published on

Permalink CVE-2026-5466

updated 2 weeks, 4 days ago by @LeSuisse Activity log

Created suggestion 2 weeks, 4 days ago
@LeSuisse accepted 2 weeks, 4 days ago
@LeSuisse published on GitHub 2 weeks, 4 days ago

wc_VerifyEccsiHash missing sanity check

wolfSSL's ECCSI signature verifier `wc_VerifyEccsiHash` decodes the `r` and `s` scalars from the signature blob via `mp_read_unsigned_bin` with no check that they lie in `[1, q-1]`. A crafted forged signature could verify against any message for any identity, using only publicly-known constants.

References

https://github.com/wolfssl/wolfssl/pull/10102

Affected products

wolfSSL

<5.9.1

Matching in nixpkgs

pkgs.wolfssl

Small, fast, portable implementation of TLS/SSL for embedded devices

nixos-unstable 5.9.0
- nixpkgs-unstable 5.9.0
- nixos-unstable-small 5.9.0
nixos-25.11 5.9.0
- nixos-25.11-small 5.9.0
- nixpkgs-25.11-darwin 5.9.0

Package maintainers

@fabaff Fabian Affolter <mail@fabian-affolter.ch>
@vifino Adrian Pistol <vifino@tty.sh>

Nixpkgs security tracker

Details of issue NIXPKGS-2026-1060

References

Affected products

Matching in nixpkgs

pkgs.wolfssl

Package maintainers