CVE-2026-86469

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CVSS 3.1

5.3 medium

EPSS

<1%p2

Published

Sep 7, 2026 (8d ago)

Modified

Sep 8, 2026

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.

Weakness: CWE-59
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

NVD CVE.org GitHub PoCs EPSS (0.1%)

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