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CVE-2026-54231

Abrt: unsanitized systemd journal content written to dump directory files enables content injection

CVSS score

5.5

EPSS probability

%0.2

Risk score

0.0

Published

4 mo ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-54231 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

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.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-54231 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Red HatRed Hat Enterprise Linux 8 View
2Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support View
3Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On View
4Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support View
5Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On View
6Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service View
7Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions View
8Red HatRed Hat Enterprise Linux 6 View
9Red HatRed Hat Enterprise Linux 7 View
10redhatautomatic bug reporting tool View
11fedoraprojectfedora View
12fedoraprojectfedora View
13redhatenterprise linux View
14redhatenterprise linux View
Total affected vendors: 3|Products: 14

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
5.5CVSS V31MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NNVD
5.5CVSS V3_1MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NCVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-54231 is associated with the following CWEs:

CWE-74: Common Weakness Enumeration Entry CWE-74

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-54231 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

RHSA-2026:54272vendor-advisoryRHSA-2026:69115vendor-advisoryRHSA-2026:69116vendor-advisoryRHSA-2026:69117vendor-advisoryhttps://access.redhat.com/security/cve/CVE-2026-54231vendor-advisoryRHBZ#2488571vendor-advisory

CVSS Vector Radar Chart

5.5 / 10
Attack VectorLocalComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

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Weakness Type (CWE & CAPEC)

CWE-74

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