TI-2026-35229 Aliases CVE-2026-47728 GHSA-5389-f7vh-wxj8

Bugsink: Project scoping missing in sourcemap and debug-file lookup

LOW 19CWE-862Published 2026-05-26 · Updated 2026-05-26

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
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-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00178 7th 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-5389-f7vh-wxj8

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-5389-f7vh-wxj8

Remediation

Fix · CNA bugsink (bugsink) Fixed in 2.2.0
Fix · GHSA-5389-f7vh-wxj8 bugsink (PyPI) Fixed in 2.2.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-47728
2026-10-03 Alias added: GHSA-5389-f7vh-wxj8

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-47728

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