Description
OpenLIT 2.1.0 contains an authorization bypass vulnerability that allows authenticated users to read other projects' telemetry by supplying a forged x-openlit-project-id header. Attackers who know a victim project id and database config id can query the trace read API to obtain traces including LLM prompts and completions.
Metrics
CVSS 3.1 5.3/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| openlit | openlit | >= 2.1.0, <= 2.1.0 |
References
- https://github.com/openlit/openlit
- https://github.com/openlit/openlit/blob/9938c66638666ca5d3bcb850350faa82e510924b/src/client/src/lib/telemetry-source.ts#L113-L125
- https://github.com/openlit/openlit/blob/9938c66638666ca5d3bcb850350faa82e510924b/src/client/src/middleware/check-auth.ts#L22-L33
- https://hackmd.io/@haind/openlit-project-context-read
- https://www.vulncheck.com/advisories/openlit-2.1.0-authorization-bypass-via-x-openlit-project-id-header
Timeline
- Published
- Oct 10, 2026
- Last modified
- Oct 18, 2026
- NVD status
- Deferred