| Name | CVE-2026-41989 |
| Description | Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt. |
| 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 | DSA-6294-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libgcrypt20 (PTS) | bullseye | 1.8.7-6 | fixed |
| bookworm | 1.10.1-3 | vulnerable |
| bookworm (security) | 1.10.1-3+deb12u1 | fixed |
| trixie | 1.11.0-7 | vulnerable |
| trixie (security) | 1.11.0-7+deb13u1 | fixed |
| forky, sid | 1.12.2-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bullseye] - libgcrypt20 <not-affected> (Vulnerable code introduced later)
https://www.openwall.com/lists/oss-security/2026/04/21/1
https://dev.gnupg.org/T8211
Fixed by: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=2d3d732c9bf87cc10729f69678dd9e6862f99fa3 (libgcrypt-1.12.2)
Introduced by: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=bbe15758c893dbf546416c1a6bccdad1ab000ad7 (libgcrypt-1.9.0)