CVE-2026-47728 Bugsink: Project scoping missing in sourcemap and debug-file lookup
Authenticated users can access sourcemap and debug-file metadata from other projects due to missing project scoping in lookup logic.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47728?
CVE-2026-47728 is a medium-severity missing authorization vulnerability in bugsink, published on 26 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-47728?
3 open source packages ship an affected version, including bugsink.
| Package | Affected | Fixed in |
|---|---|---|
bugsink PyPI | All versions | 2.2.0 |
bugsink PyPI | All versions | 2.2.0 |
bugsink PyPI | All versions | 2.2.0 |
How do I fix CVE-2026-47728?
Upgrade bugsink to 2.2.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-47728 being exploited?
There is no known exploitation of CVE-2026-47728 in the wild and no public exploit code.
Sources
Also known as GHSA-5389-f7vh-wxj8, PYSEC-2026-2402.