| Name | CVE-2026-10649 |
| Description | A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing. |
| 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) |
| Debian Bugs | 1140188 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| pacemaker (PTS) | bullseye | 2.0.5-2 | vulnerable |
| bookworm | 2.1.5-1+deb12u1 | vulnerable | |
| trixie | 3.0.0-2 | vulnerable | |
| forky, sid | 3.0.1-1.1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| pacemaker | source | (unstable) | (unfixed) | 1140188 |
https://www.openwall.com/lists/oss-security/2026/06/16/6
https://github.com/clusterLabs/pacemaker/pull/4128
Fixed by: https://github.com/ClusterLabs/pacemaker/commit/8e667ef87ac4bc66ab8c64599334b521655925f7
Fixed by: https://github.com/ClusterLabs/pacemaker/commit/1e1825bf2c28a349c576521fbda4393455297987
Fixed by: https://github.com/ClusterLabs/pacemaker/commit/bb37829e00c782071906305d2cf50247179f0fd7
Fixed by: https://github.com/ClusterLabs/pacemaker/commit/6dd7ce8e656b6c629d3268038d6606041460fae7
Fixed by: https://github.com/ClusterLabs/pacemaker/commit/c49b26cb1e11bb160198a28ac5567b0154b49121