Medium severity · published Oct 10, 2026
CVE-2026-108596
OpenLIT 2.1.0 Authorization Bypass via x-openlit-project-id Header
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openlit · openlit
2.1.0 through 2.1.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-108596
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-108596
third-party-advisory
https://hackmd.io/@haind/openlit-project-context-read
technical-description
https://github.com/openlit/openlit/blob/9938c66638666ca5d3bcb850350faa82e510924b/src/client/src/lib/telemetry-source.ts#L113-L125
technical-description
https://github.com/openlit/openlit/blob/9938c66638666ca5d3bcb850350faa82e510924b/src/client/src/middleware/check-auth.ts#L22-L33
product
https://github.com/openlit/openlit
third-party-advisory
https://www.vulncheck.com/advisories/openlit-2.1.0-authorization-bypass-via-x-openlit-project-id-header
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