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VULNERABILITIES

CVE-2026-86469 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://gitlab.gnome.org/GNOME/glib/-/work_items/4044 CISA-ADP
https://access.redhat.com/security/cve/CVE-2026-86469 [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2473839 [email protected]
https://gitlab.gnome.org/GNOME/glib/-/blob/main/gio/glocalfileoutputstream.c [email protected]
https://gitlab.gnome.org/GNOME/glib/-/work_items/4044 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-59Improper Link Resolution Before File Access ('Link Following')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-86469
NVD Published Date:
Sep 7, 2026
NVD Last Modified:
Sep 8, 2026
Source:
[email protected]
CVE-2026-86469 Details - Not Deferred