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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | abrt +21 | 2.10.9-26.el8_10 | RHSA-2026:54272 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.8 TUS | abrt +21 | 2.10.9-25.el8_8.2 | RHSA-2026:69117 |
| RHEL 8.8 E4S | abrt +21 | 2.10.9-25.el8_8.2 | RHSA-2026:69117 |
| RHEL 8.6 EUS Long Life | abrt +21 | 2.10.9-25.el8_6.2 | RHSA-2026:69115 |
| RHEL 8.6 AUS | abrt +21 | 2.10.9-25.el8_6.2 | RHSA-2026:69115 |
| RHEL 8.4 EUS Long Life | abrt +21 | 2.10.9-25.el8_4.2 | RHSA-2026:69116 |
| RHEL 8.4 AUS | abrt +21 | 2.10.9-25.el8_4.2 | RHSA-2026:69116 |
| RHEL 7 ELS | abrt +20 | 2.1.11-62.el7_9 | RHSA-2026:69121 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | abrt +21 | 2.10.9-26.el8_10.alma.1 | ALSA-2026:54272 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | abrt | 2.10.9-26.el8_10.rocky.0.1 | RLSA-2026:54272 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libreport | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | abrt +21 | 2.10.9-26.0.2.el8_10 | ELSA-2026-54272 |
| Oracle Linux 7 | abrt +20 | 2.1.11-60.0.7.el7 | ELSA-2026-69121 |
Advisories 10
- RHSA-2026:69115 Red Hat Security Advisory: abrt security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ALSA-2026:54272 Important: abrt security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-3470 Red Hat Enterprise Linux (abrt): Mehrere Schwachstellen ermöglichen Manipulation von Dateien BSI CERT-Bund (WID) · Sep 27, 2026
- ELSA-2026-69121 Important: abrt security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 24, 2026
- RHSA-2026:69121 Red Hat Security Advisory: abrt security update Red Hat Security Advisories (RHSA) · Sep 22, 2026
- RHSA-2026:69117 Red Hat Security Advisory: abrt security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2026:69116 Red Hat Security Advisory: abrt security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2026:54272 Red Hat Security Advisory: abrt security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- ELSA-2026-54272 Important: abrt security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 25, 2026
- RLSA-2026:54272 Important: abrt security update Rocky Linux Security Advisories · Aug 13, 2026
References
- RHSA-2026:54272 vendor-advisory
- RHSA-2026:69115 vendor-advisory
- RHSA-2026:69116 vendor-advisory
- RHSA-2026:69117 vendor-advisory
- RHSA-2026:69121 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-54230 vdb-entry
- RHBZ#2488568 issue-tracking