| Name | CVE-2026-85498 |
| Description | Regression in CVE-2026-4897 fix (polkit read_cookie()) - stack buffer underflow |
| 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 | 1149960 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| policykit-1 (PTS) | bookworm | 122-3 | fixed |
| trixie | 126-2 | fixed |
| forky | 127-3 | vulnerable |
| sid | 128-1 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
[trixie] - policykit-1 <not-affected> (Fix for CVE-2026-4897 not applied)
[bookworm] - policykit-1 <not-affected> (Fix for CVE-2026-4897 not applied)
https://github.com/polkit-org/polkit/pull/702
Introduced with: https://github.com/polkit-org/polkit/commit/7e122c8a5120c2aae2d9d44a26796dc18f5b677c
The fix for CVE-2026-4897 introduces th new stack buffer underflow issue.
Fixed by: https://github.com/polkit-org/polkit/commit/eea172967848bb4c5a407329f40c0e45de0d187e