Description
In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gnome-keyring | 3.28.0-1 | — |
| Debian 13 | gnome-keyring | 3.28.0-1 | — |
| Debian 12 | gnome-keyring | 3.28.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | gnome-keyring | 3.18.3-0ubuntu2.1 | USN-3894-1 |
| Ubuntu 14.04 LTS | gnome-keyring | 3.10.1-1ubuntu4.4 | USN-3894-1 |
Advisories 1
- USN-3894-1 gnome-keyring vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
References
- USN-3894-1 vendor-advisory
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://gitlab.gnome.org/GNOME/gnome-keyring/tags/3.27.2
- https://gitlab.gnome.org/GNOME/gnome-keyring/issues/3
- https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1772919
- https://bugzilla.gnome.org/show_bug.cgi?id=781486
- https://github.com/huntergregal/mimipenguin/tree/d95f1e08ce79783794f38433bbf7de5abd9792da
- https://github.com/huntergregal/mimipenguin