CVE-2026-86469

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 26/100
Published: 2026-09-07 Modified: 2026-11-06 First seen: 2026-11-02 Status: active

Attack Surface

No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: Low
UI: None
S: Unchanged
C: None
I: High
A: Low

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.

Bug Bounty Relevance

26 / 100
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

EPSS — Exploitation Probability

0.14%
Raw Score 0.001410
Percentile 3.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00141
2026-11-12
0.00141
2026-11-10
0.00141
2026-11-09
0.00141
2026-11-08
0.00141
2026-11-07
0.00141
2026-11-06
0.00141
2026-11-05
0.00141
2026-11-04
0.00141
2026-11-03
0.00141
2026-11-02
0.00141
2026-11-01
0.00141

Intelligence Sources

mitre ref →
nvd ref →