| Name | CVE-2026-48863 |
| Description | A flaw was found in libsolv. A stack-based buffer overflow vulnerability exists in the PGP verification component due to incorrect length handling when copying EdDSA 's' MPI into a stack buffer. A remote attacker could craft a malicious Ed25519 PGP signature with mismatched MPI lengths. Processing this crafted signature could lead to a denial of service in automated package or repository processing workflows. |
| 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) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libsolv (PTS) | bullseye | 0.7.17-1+deb11u1 | vulnerable |
| bookworm | 0.7.23-1+deb12u1 | vulnerable |
| trixie | 0.7.32-1 | vulnerable |
| forky, sid | 0.7.39-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libsolv | source | (unstable) | 0.7.38-1 | | | |
Notes
[trixie] - libsolv <no-dsa> (Minor issue)
[bookworm] - libsolv <no-dsa> (Minor issue)
[bullseye] - libsolv <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2460975
Fixed by: https://github.com/openSUSE/libsolv/commit/44f8c085045b1f771641091bbb2b810d12cff9e8 (0.7.38)