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PatchSiren cyber security CVE debrief

CVE-2026-54228 Red Hat CVE debrief

A time-of-check time-of-use (TOCTOU) race condition was found in the abrt-dbus D-Bus service's SetElement method. Between dump directory creation and post-create event execution, any local user can call SetElement to write arbitrary text files into the root-owned dump directory, bypassing package validation and allowing crashes of unpackaged binaries to survive post-create processing.

Vendor
Red Hat
Product
Red Hat Enterprise Linux 6
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-13
Original CVE updated
2026-08-13
Advisory published
2026-06-13
Advisory updated
2026-08-13

Who should care

Users of systems where abrt-dbus is installed and running, particularly those with multi-user access.

Technical summary

The abrt-dbus service is vulnerable to a TOCTOU race condition in its SetElement method. This allows a local user to write arbitrary text files into the root-owned dump directory, potentially bypassing package validation.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates provided by the vendor to fix the TOCTOU race condition in abrt-dbus.
  • Restrict access to the abrt-dbus service to trusted users only.
  • Monitor systems for suspicious activity related to the abrt-dbus service.

Evidence notes

The CVE-2026-54228 record was obtained from the NVD database, which lists it as having a CVSS score of 7.8 and a HIGH severity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-54228 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-54228

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-54228 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-54228

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.