Authorization bypass in Umami Record API endpoint
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-285.
Summary
Umami up to 3.4.1 contains an authorization bypass in the Record API endpoint in src/app/api/record/route.ts. Manipulating the Website argument bypasses authorization (CWE-639). A remote attacker without privileges or user interaction can exploit it to affect integrity and availability to a limited degree. A public exploit has been disclosed and may be used.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
A vulnerability has been found in Umami up to 3.4.1. Impacted is an unknown function of the file src/app/api/record/route.ts of the component Record API Endpoint. Such manipulation of the argument Website leads to authorization bypass. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
The sources list no fixed version for Umami.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Timeline
- 2026-11-03 Threatist record created from CVE-2026-121582
- 2026-11-04 Alias added: GHSA-8rw7-67fx-hqj4
- 2026-11-05 Priority changed: MEDIUM → LOW
References
Sources
- CVE-2026-121582 · CVE Program
- CVE-2026-121582 · NVD
- FIRST EPSS
- GHSA-8rw7-67fx-hqj4 · GitHub Advisory Database · CC BY 4.0
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