| Name | CVE-2026-86469 |
| Description | A flaw was found in GLib2. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION and creating the .goutputstream-XXXXXX temporary file fails, the library unlinks the destination and recreates it without exclusive creation or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file. |
| 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 | 1147411 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| glib2.0 (PTS) | bookworm | 2.74.6-2+deb12u9 | vulnerable |
| bookworm (security) | 2.74.6-2+deb12u2 | vulnerable |
| trixie | 2.84.4-3~deb13u5 | vulnerable |
| forky, sid | 2.90.0-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| glib2.0 | source | (unstable) | (unfixed) | | | 1147411 |
Notes
[trixie] - glib2.0 <no-dsa> (Minor issue)
[bookworm] - glib2.0 <postponed> (Minor issue, require working in attacker-controlled directory)
https://bugzilla.redhat.com/show_bug.cgi?id=2473839
https://gitlab.gnome.org/GNOME/glib/-/work_items/4044