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Vulnerability · Published Sep 3, 2026 · Assigned by redhat

CVE-2026-71222Gfs2-utils: gfs2-utils: heap out-of-bounds read via unchecked ea_num_ptrs in extended attribute processing

Medium 5.3

In plain English

A medium-severity out-of-bounds read in Red Hat Enterprise Linux 7 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.1%top 98.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A heap out-of-bounds read vulnerability was found in gfs2-utils. The ea_num_ptrs field from on-disk extended attribute metadata is consumed without bounds validation, causing a heap buffer over-read that may disclose sensitive memory contents or cause a crash when processing crafted GFS2 filesystem images.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gfs2-utilsno fix listedDEBIAN-CVE-2026-71222
Debian:13gfs2-utilsno fix listedDEBIAN-CVE-2026-71222
Debian:14gfs2-utils3.6.1-2DEBIAN-CVE-2026-71222
Ubuntu:22.04:LTSgfs2-utilsno fix listedUBUNTU-CVE-2026-71222
Ubuntu:24.04:LTSgfs2-utilsno fix listedUBUNTU-CVE-2026-71222
Ubuntu:26.04:LTSgfs2-utilsno fix listedUBUNTU-CVE-2026-71222
Ubuntu:26.10gfs2-utilsno fix listedUBUNTU-CVE-2026-71222

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:L

References