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.
Published: 2026-09-15
Score: 4.3 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-5x67-j5xg-c5gj Bugsink: DOS using large numbers of event tags
History

Tue, 15 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 15 Sep 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Bugsink
Bugsink bugsink
Vendors & Products Bugsink
Bugsink bugsink

Tue, 15 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
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.
Title Bugsink: DOS using large numbers of event tags
Weaknesses CWE-400
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-15T19:44:40.912Z

Reserved: 2026-06-11T15:50:01.281Z

Link: CVE-2026-53954

cve-icon Vulnrichment

Updated: 2026-09-15T18:57:38.960Z

cve-icon NVD

Status : Received

Published: 2026-09-15T18:17:22.393

Modified: 2026-09-15T20:17:19.293

Link: CVE-2026-53954

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T19:30:11Z

Weaknesses