TI-2026-35216 Aliases CVE-2026-47715 GHSA-vx2f-6m6h-9frf

Bugsink: Issue event views can show an event from another project if its UUID is known

LOW 14CWE-639Published 2026-05-26 · Updated 2026-05-28

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-639.

Summary

Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, Bugsink issue event pages accept a direct event identifier from the URL and, in affected versions, look up that event without also requiring it to belong to the issue in the URL. This is a project-boundary authorization issue: a logged-in user with access to one project can view another project’s event data through an issue they are allowed to access. The affected views include the stacktrace, details, and breadcrumbs pages for an issue event. This vulnerability is fixed in 2.2.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00154 4th percentileScored 2026-11-07

Fix Fixed bugsink (bugsink): 2.2.0bugsink (PyPI): 2.2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
bugsink	bugsink	before 2.2.0	2.2.0	Patch available	CNA
—	bugsink (PyPI)	before 2.2.0	2.2.0	Patch available	GHSA-vx2f-6m6h-9frf

bugsink Vendorbugsink Affected before 2.2.0 Fixed in 2.2.0 Patch available CNA
bugsink (PyPI) Vendor— Affected before 2.2.0 Fixed in 2.2.0 Patch available GHSA-vx2f-6m6h-9frf

Remediation

Fix · CNA bugsink (bugsink) Fixed in 2.2.0
Fix · GHSA-vx2f-6m6h-9frf bugsink (PyPI) Fixed in 2.2.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-47715
2026-10-03 Alias added: GHSA-vx2f-6m6h-9frf

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-47715

Other 3

TI-2026-22000 Bugsink is vulnerable to Stored XSS via Pygments fallback in stacktrace rendering CVSS 3.1CRITICAL 9.3
TI-2025-39901 Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU) CVSS 3.1HIGH 7.5
TI-2025-39900 Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input CVSS 3.1HIGH 7.5
TI-2025-34236 Bugsink is vulnerable to Path Traversal attacks via event_id in ingestion CVSS 4.0HIGH 7.2
TI-2026-28977 Bugsink affected by authenticated arbitrary file write in artifactbundle/assemble CVSS 3.1HIGH 7.1
TI-2026-38922 Bugsink: DOS using large numbers of event tags CVSS 3.1MEDIUM 4.3

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences