CVE-2026-86469 — Glib2: toctou symlink race in `g_file_create_replace_destination` fallback path
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 …
Published: 2026-09-07 · CVSS: 5.3 · CVSS 3.1
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 Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7