| Name | CVE-2026-6094 |
| Description | Heap buffer overread in wc_PKCS7_DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4683-1 |
| Debian Bugs | 1140765 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| wolfssl (PTS) | bullseye | 4.6.0+p1-0+deb11u2 | vulnerable |
| bookworm | 5.5.4-2+deb12u2 | vulnerable |
| bookworm (security) | 5.5.4-2+deb12u3 | fixed |
| trixie | 5.7.2-0.1+deb13u1 | vulnerable |
| sid | 5.9.2-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[trixie] - wolfssl <no-dsa> (Can be fixed in point release)
[bullseye] - wolfssl <postponed> (Minor issue)
https://github.com/wolfSSL/wolfssl/pull/10128 (v5.9.2-stable)