CVE-2026-86469
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.
- CVSS 3.1
- 5.3 MEDIUM
- EPSS
- 0.1% (2th percentile)
- Weakness
- CWE-59
- NVD status
- Awaiting Analysis
- Published
- 2026-09-07
Workaround
Do not use g_file_replace(..., G_FILE_CREATE_REPLACE_DESTINATION) on paths in directories writable by less-privileged users.
CVE-2026-86469 at NVD
No indexed exploits for CVE-2026-86469 yet
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