CVE-2026-71219CWE-770denial-of-service

CVE-2026-71219

Medium · published September 3, 2026

CVSS v3.1
4.7
EPSS
0%
Percentile
3.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00143 · 3.3th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-09-03T17:06Z
Affected products (3)
ProductVersionsFixed in
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
References (2)
https://access.redhat.com/security/cve/CVE-2026-71219 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2507750 · [email protected]
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 03 SEP 12:23Z
    Gfs2-utils: gfs2-utils: stack overflow via alloca(1<<di_depth) in hash table traversal
    cvelistv5