CVE-2026-121582
A vulnerability has been found in Umami up to 3.4.1
- Risk score
- 45/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 3 Nov 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 a…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.5 medium
References
- https://github.com/umami-software/umami/security/advisories/GHSA-4cww-5p37-v8r2
- https://github.com/waterhunter2000-svg/vulnerability-reports
- https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.md
- https://vuldb.com/cve/CVE-2026-121582
- https://vuldb.com/submit/1019998
- https://vuldb.com/vuln/430425
- https://vuldb.com/vuln/430425/cti
Original description
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.
Last activity 3 Nov 2026. Patch Forecast updates every hour.