Medium severity5.5NVD Advisory· Published Mar 23, 2026· Updated Apr 15, 2026
CVE-2026-29111
CVE-2026-29111
Description
systemd, a system and service manager, (as PID 1) hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled content. From version v250 and newer this is not possible as the safety check causes an assert instead. This IPC call was added in v239, so versions older than that are not affected. Versions 260-rc1, 259.2, 258.5, and 257.11 contain patches. No known workarounds are available.
Affected products
1Patches
101d22f706bd04https://github.com/systemd/systemdvia nvd-ref
20021e768642https://github.com/systemd/systemdvia nvd-ref
21167006574dhttps://github.com/systemd/systemdvia nvd-ref
3cee294fe8cfhttps://github.com/systemd/systemdvia nvd-ref
42aee39107fbhttps://github.com/systemd/systemdvia nvd-ref
54588d2dedffhttps://github.com/systemd/systemdvia nvd-ref
7ac322021369https://github.com/systemd/systemdvia nvd-ref
80acea4ef80ahttps://github.com/systemd/systemdvia nvd-ref
b5fd14693057https://github.com/systemd/systemdvia nvd-ref
efa6ba2ab625https://github.com/systemd/systemdvia nvd-ref
Vulnerability mechanics
Synthesis attempt was rejected by the grounding validator. Re-run pending.
References
11- github.com/systemd/systemd/commit/1d22f706bd04f45f8422e17fbde3f56ece17758anvdPatch
- github.com/systemd/systemd/commit/20021e7686426052e3a7505425d7e12085feb2a6nvdPatch
- github.com/systemd/systemd/commit/21167006574d6b83813c7596759b474f56562412nvdPatch
- github.com/systemd/systemd/commit/3cee294fe8cf4fa0eff933ab21416d099942cabdnvdPatch
- github.com/systemd/systemd/commit/42aee39107fbdd7db1ccd402a2151822b2805e9fnvdPatch
- github.com/systemd/systemd/commit/54588d2dedff54bfb6036670820650e4ea74628fnvdPatch
- github.com/systemd/systemd/commit/7ac3220213690e8a8d6d2a6e81e43bd1dce01d69nvdPatch
- github.com/systemd/systemd/commit/80acea4ef80a4bb78560ed970c34952299b890d6nvdPatch
- github.com/systemd/systemd/commit/b5fd14693057e5f2c9b4a49603be64ec3608ff6cnvdPatch
- github.com/systemd/systemd/commit/efa6ba2ab625aaa160ac435a09e6482fc63bdbe8nvdPatch
- github.com/systemd/systemd/security/advisories/GHSA-gx6q-6f99-m764nvdPatchVendor Advisory
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