Vulnerability Description
Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an unusually large tag set and force excessive tag-row writes. Because Bugsink uses a single-writer database architecture, the expensive write transaction delays digestion of other events and causes a temporary ingestion denial of service. Version 2.2.2 applies the configurable MAX_EVENT_TAGS limit before storage. The impact is limited to availability for an instance accepting the event and does not expose stored data, modify existing events, or allow code execution. This issue is fixed in version 2.2.2.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/bugsink/bugsink/commit/1d0539fefcd1a796143d15d84053b1c0122ef8
- https://github.com/bugsink/bugsink/commit/8dca571b9e66c535ed4885465db820824e7c49
- https://github.com/bugsink/bugsink/releases/tag/2.2.2
- https://github.com/bugsink/bugsink/security/advisories/GHSA-5x67-j5xg-c5gj
FAQ
What is CVE-2026-53954?
CVE-2026-53954 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an u...
How severe is CVE-2026-53954?
CVE-2026-53954 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53954?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.