Abrt: event handler scripts follow symlinks when writing output files, allowing arbitrary file overwrites
Priority LOW 35CWE-59Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 9 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00228 13th percentileScored 2026-11-07
Fix Partial Red Hat: 5 advisoriesRed Hat: 9 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | 2.1.11-62.el7_9 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 2.10.9-26.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 2.10.9-25.el8_4.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | 2.10.9-25.el8_4.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 2.10.9-25.el8_6.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | 2.10.9-25.el8_6.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | 2.10.9-25.el8_8.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | 2.10.9-25.el8_8.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
- Red Hat Enterprise Linux 7 Extended Lifecycle Support VendorRed Hat Affected — Fixed in 2.1.11-62.el7_9 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 2.10.9-26.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.10.9-25.el8_4.2 Patch available CNA
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 2.10.9-25.el8_4.2 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.10.9-25.el8_6.2 Patch available CNA
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 2.10.9-25.el8_6.2 Patch available CNA
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service VendorRed Hat Affected — Fixed in 2.10.9-25.el8_8.2 Patch available CNA
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.10.9-25.el8_8.2 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:automatic_bug_reporting_tool:*:*:*:*:*:*:*:* | all versions | Vulnerable | Red Hat |
| cpe:2.3:o:fedoraproject:fedora:43:*:*:*:*:*:*:* | 43 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:44:*:*:*:*:*:*:* | 44 | Vulnerable | Fedoraproject |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
- cpe:2.3:a:redhat:automatic_bug_reporting_tool:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Red Hat
- cpe:2.3:o:fedoraproject:fedora:43:*:*:*:*:*:*:* Versions 43 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:44:*:*:*:*:*:*:* Versions 44 Vulnerable ·Fedoraproject
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
Remediation
Red Hat 5 advisories
- RHSA-2026:69121 Released 2026-09-21 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux Server (v. 7 ELS) abrt-2.1.11-62.el7_9, abrt-addon-ccpp-2.1.11-62.el7_9, abrt-addon-kerneloops-2.1.11-62.el7_9 +15
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) abrt-addon-upload-watch-2.1.11-62.el7_9, abrt-devel-2.1.11-62.el7_9, abrt-devel-2.1.11-62.el7_9.ppc +4
- RHSA-2026:69117 Released 2026-09-21 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) abrt-2.10.9-25.el8_8.2, abrt-addon-ccpp-2.10.9-25.el8_8.2, abrt-addon-coredump-helper-2.10.9-25.el8_8.2 +19
- Red Hat Enterprise Linux AppStream TUS (v.8.8) abrt-2.10.9-25.el8_8.2, abrt-addon-ccpp-2.10.9-25.el8_8.2, abrt-addon-coredump-helper-2.10.9-25.el8_8.2 +19
- RHSA-2026:69115 Released 2026-09-21 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) abrt-2.10.9-25.el8_6.2, abrt-addon-ccpp-2.10.9-25.el8_6.2, abrt-addon-coredump-helper-2.10.9-25.el8_6.2 +19
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) abrt-2.10.9-25.el8_6.2, abrt-addon-ccpp-2.10.9-25.el8_6.2, abrt-addon-coredump-helper-2.10.9-25.el8_6.2 +19
Show 2 more Red Hat advisories
- RHSA-2026:69116 Released 2026-09-21 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) abrt-2.10.9-25.el8_4.2, abrt-addon-ccpp-2.10.9-25.el8_4.2, abrt-addon-coredump-helper-2.10.9-25.el8_4.2 +19
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) abrt-2.10.9-25.el8_4.2, abrt-addon-ccpp-2.10.9-25.el8_4.2, abrt-addon-coredump-helper-2.10.9-25.el8_4.2 +19
- RHSA-2026:54272 Released 2026-08-12 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream (v. 8) abrt-2.10.9-26.el8_10, abrt-addon-ccpp-2.10.9-26.el8_10, abrt-addon-coredump-helper-2.10.9-26.el8_10 +19
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 Extended Lifecycle Support and 7 more products — RHSA-2026:54272
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-39131 Abrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump directoriesPriority LOW 35
- TI-2026-39132 Abrt: chownproblemdir succeeds during active post-create event processing due to inadequate lockingPriority LOW 32
- TI-2026-39134 Abrt: unsanitized systemd journal content written to dump directory files enables content injectionPriority LOW 24
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8 and 6 more products — RHSA-2026:69115
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-39134 Abrt: unsanitized systemd journal content written to dump directory files enables content injectionPriority LOW 24
Show 2 more groups
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8 and 6 more products — RHSA-2026:69116
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-39134 Abrt: unsanitized systemd journal content written to dump directory files enables content injectionPriority LOW 24
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8 and 6 more products — RHSA-2026:69117
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-39134 Abrt: unsanitized systemd journal content written to dump directory files enables content injectionPriority LOW 24
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:54272 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2026:69116 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:69115 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:69117 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:69116 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:69115 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:69117 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2026:69121 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2026:69121 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54230
- 2026-10-03 Alias added: GHSA-gvjc-4rfj-mxxj
References
More Red Hat Automatic Bug Reporting Tool vulnerabilities
- TI-2015-04443 The abrt-hook-ccpp help program in Automatic Bug Reporting Tool (ABRT) before 2.7.1… KEVCVSS 3.1HIGH 7.8
- TI-2015-02930 Automatic Bug Reporting Tool (ABRT) allows local users to read, change the ownership of… CVSS 3.0HIGH 7.8
- TI-2015-01672 The crash reporting feature in Abrt allows local users to gain privileges by leveraging… CVSS 3.0HIGH 7.0
- TI-2011-03606 ABRT might allow attackers to obtain sensitive information from crash reports. CVSS 3.1HIGH 7.5
- TI-2015-02784 Path traversal in ABRT CVSS 3.1HIGH 7.8
- TI-2015-02791 The abrt-action-install-debuginfo-to-abrt-cache help program in Automatic Bug Reporting… CVSS 3.1HIGH 7.8
Sources
- CVE-2026-54230 · CVE Program
- CVE-2026-54230 · NVD
- FIRST EPSS
- GHSA-gvjc-4rfj-mxxj · GitHub Advisory Database · CC BY 4.0
- CVE-2026-54230 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences