What’s Vulnerable › Vulnerabilities

CVE-2026-54230: Abrt: event handler scripts follow symlinks when writing output files, allowing arbitrary file overwrites

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-13 · updated 2026-09-21
• Weakness: CWE-59

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.

Affected products

• Fedoraproject Fedora: 43, 44
• RedHat Automatic Bug Reporting Tool: all versions
• Red Hat Enterprise Linux: 7.0, 8.0

References

• https://access.redhat.com/errata/RHSA-2026:54272
• https://access.redhat.com/errata/RHSA-2026:69115
• https://access.redhat.com/errata/RHSA-2026:69116
• https://access.redhat.com/errata/RHSA-2026:69117
• https://access.redhat.com/errata/RHSA-2026:69121
• https://access.redhat.com/security/cve/CVE-2026-54230
• https://bugzilla.redhat.com/show_bug.cgi?id=2488568
• https://access.redhat.com/errata/RHSA-2026:54272
• https://access.redhat.com/security/cve/CVE-2026-54230
• https://bugzilla.redhat.com/show_bug.cgi?id=2488568
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54230.json

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