CVE-2026-54230

Abrt: event handler scripts follow symlinks when writing output files, allowing arbitrary file overwrites

State: Published
Severity: 7.0 High
Published: Jun 13, 2026
Updated: Sep 21, 2026
Reserved: Jun 12, 2026

Description

A symlink following vulnerability was found in the ABRT post-create event handler scripts in libreport. Event scripts write output files using shell redirections without the O_NOFOLLOW flag. If the target file is replaced with a symlink, the shell process running as root follows the symlink and writes content to the symlink target, allowing arbitrary file overwrites on the system.

Scores

CVSS	Score	Vector	Source
3.1	7.0 High	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat
3.1	7.0 High	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat-SADP

Weaknesses

CWE-59 Improper Link Resolution Before File Access ('Link Following')

Affected Products

Product	Versions
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat	0:2.1.11-62.el7_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:2.10.9-26.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:2.10.9-25.el8_4.2 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat	0:2.10.9-25.el8_4.2 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat	0:2.10.9-25.el8_6.2 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat	0:2.10.9-25.el8_6.2 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat	0:2.10.9-25.el8_8.2 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat	0:2.10.9-25.el8_8.2 and laterNot affected
Red Hat Enterprise Linux 6Red Hat

References

RHSA-2026:54272vendor-advisory
RHSA-2026:69115vendor-advisory
RHSA-2026:69116vendor-advisory
RHSA-2026:69117vendor-advisory
RHSA-2026:69121vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-54230vdb-entry
RHBZ#2488568issue-tracking
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54230.json

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