EUVD-2026-31862
GHSA-g5vc-q7qc-v939
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Lifecycle Timeline
3DescriptionGitHub Advisory
Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project. This vulnerability is fixed in 2.2.0.
AnalysisAI
Cross-project issue state modification in Bugsink prior to 2.2.0 allows authenticated users with access to one project to alter the state of issues belonging to other projects if a valid target issue UUID is known. The bulk action endpoint authorizes based on the project in the URL but applies submitted issue IDs without verifying project membership, creating a project-boundary authorization bypass. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to be an authenticated Bugsink user (CVSS PR:L) with at least member-level access to any project on the target instance. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is low and consistent across all available signals. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated Bugsink user with legitimate membership in Project A obtains the UUID of an issue in Project B - for example, from a previously shared link, a notification, or prior elevated access. The attacker submits a bulk resolve or mute request through the Project A issue list interface, supplying the Project B issue UUID in the payload. … |
| Remediation | Upgrade to Bugsink 2.2.0 or later, which scopes bulk issue actions and event lookups to the authorized project, eliminating the boundary bypass. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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