UBUNTU-CVE-2026-85498
[Regression in CVE-2026-4897 fix (polkit read_cookie()) - stack buffer underflow]
- Update to 127-2ubuntu1.1
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Vulnerabilities published for policykit-1 in the last 30 days: 0. Listed in the KEV catalogue: 0.
Vulnerabilities: 2
[Regression in CVE-2026-4897 fix (polkit read_cookie()) - stack buffer underflow]
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Check your installed stack and versions against the current vulnerability feeds.