CVE-2026-71219

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 24/100
Published: 2026-09-03 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

No Auth

CVSS Vector Breakdown

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

Description

A stack overflow vulnerability was found in gfs2-utils. The hash table traversal code in metawalk.c uses alloca() with an exponentially-derived size from the untrusted on-disk di_depth field without bounds validation. A crafted GFS2 filesystem image with a large di_depth value causes stack exhaustion and a denial of service when processed by fsck.gfs2, gfs2_edit, or savemeta.

Affected Software (3)

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2507750
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

24 / 100
✓ No authentication

CVSS Score

4.7 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.11%
Raw Score 0.001150
Percentile 1.6%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00115
2026-11-13
0.00115
2026-11-12
0.00115
2026-11-10
0.00115
2026-11-09
0.00115
2026-11-08
0.00115
2026-11-07
0.00115
2026-11-06
0.00115
2026-11-05
0.00115

Intelligence Sources

mitre ref →
nvd ref →