CVE-2026-54230
Abrt: event handler scripts follow symlinks when writing output files, allowing arbitrary file overwrites
HIGH 7.0
En bref
- Source
- NVD
- EPSS
- EPSS 0.23 % · centile 14 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
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.
Faiblesses (CWE)
- CWE-59 — Suivi de lien non maîtrisé
Références
- 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://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54230.json
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat |
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-36639
- GCVE · GCVE-0-2026-54230
Configurations affectées (CPE NVD)
cpe:2.3:a:redhat:automatic_bug_reporting_tool:*:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:43:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:44:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:2.1.11-62.el7_9 < * |
| Red Hat · Red Hat Enterprise Linux 8 | unaffected 0:2.10.9-26.el8_10 < * |
| Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:2.10.9-25.el8_4.2 < * |
| Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 0:2.10.9-25.el8_4.2 < * |
| Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:2.10.9-25.el8_6.2 < * |
| Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | unaffected 0:2.10.9-25.el8_6.2 < * |
| Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 0:2.10.9-25.el8_8.2 < * |
| Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | unaffected 0:2.10.9-25.el8_8.2 < * |
| Red Hat · Red Hat Enterprise Linux 6 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |