CVE-2026-54231: Red Hat Enterprise Linux 8 · Injection
Affects Red Hat Enterprise Linux 8Source CVE Database V5
Not known to be exploited · CVSS 5.5 Medium.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 8abrt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportabrt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onabrt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportabrt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onabrt | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceabrt | Affected– | Fixed in– |
AI-suggested
Red Hat recommends disabling or removing ABRT on RHEL 8 systems if it is not required. This can be done by disabling the abrtd and related services using systemctl. Fedora users should consider using systemd-coredump instead of ABRT. Restricting local user access to systems running ABRT can also mitigate risk. A security update fixing this vulnerability is available for Red Hat Enterprise Linux 8 and should be applied promptly.
Description
A content injection vulnerability was found in the ABRT post-create event handler scripts in libreport. The event script queries the systemd journal for log entries matching the crashed process and writes the results to files in the dump directory without sanitizing embedded control characters. A local user can inject arbitrary content into the journal output by embedding newline characters in syslog messages, controlling the content that root writes to dump directory files.
References
- access.redhat.com/security/cve/CVE-2026-54231 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2488571 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:54272 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:69115 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:69117 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:69116 (opens in a new tab)