EUVD-2026-31860
GHSA-5389-f7vh-wxj8
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
3DescriptionGitHub Advisory
Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, Bugsink resolved sourcemaps and debug files by debug ID without scoping that lookup to the project that owned the uploaded metadata. An authenticated user with access to one project could cause event processing in that project to use sourcemap/debug-file metadata uploaded for another project in the same Bugsink instance, if the same debug ID was referenced. This vulnerability is fixed in 2.2.0.
AnalysisAI
Cross-project sourcemap and debug-file disclosure in Bugsink prior to 2.2.0 allows an authenticated user with access to one project to read source context or symbolication-derived data belonging to a separate project on the same instance. The root cause is a missing authorization scope check (CWE-862): debug IDs supplied by clients were resolved globally rather than constrained to the owning project, meaning a deliberate or accidental debug ID collision across projects leaks file metadata. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated session with at least low-privilege project membership (CVSS PR:L confirmed). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The aggregate risk picture is low-to-moderate and consistently confirmed across multiple signals. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated user who is a member of Project A on a shared Bugsink instance crafts or submits an error event that references a debug ID known (or guessed) to match a sourcemap previously uploaded for the confidential Project B. During event processing, Bugsink's global debug-ID resolution returns Project B's sourcemap, embedding source file context - potentially proprietary source code snippets - into the processed event visible to the Project A member. … |
| Remediation | Upgrade Bugsink to version 2.2.0 or later, available via PyPI ('pip install --upgrade bugsink') and documented at https://github.com/bugsink/bugsink/releases/tag/2.2.0. … Detailed patch versions, workarounds, and compensating controls in full report. |
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