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5.3 Medium

A flaw was found in GLib2.

CVE-2026-86469

A flaw was found in GLib2. When gfilereplace() is used with GFILECREATEREPLACEDESTINATION 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.

Assessment

CVSS
5.3 (v3.1)
Severity
Medium
EPSS
0.14% chance of exploitation in the next 30 days
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
7 September 2026
Last updated
2 November 2026
Assigner
redhat

CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

At the source

References

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