CVE-2026-121531
A vulnerability has been found in Umami 3.3.x/3.4.0/3.4.1
- Risk score
- 44/100
- CVSS
- 6.3 v3.1
- Exploit chance (30 days)
- 0.3%
- 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 3.3.x/3.4.0/3.4.1. This affects an unknown part of the file src/app/api/auth/login/route.ts of the component 2FA Policy Handler. The manipulation leads to use of single-factor authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the p…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.3 medium
References
- https://github.com/umami-software/umami/security/advisories/GHSA-29fx-pxjg-35rm
- https://github.com/waterhunter2000-svg/vulnerability-reports
- https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/03-umami-enforced-2fa-not-applied.md
- https://vuldb.com/cve/CVE-2026-121531
- https://vuldb.com/submit/1019994
- https://vuldb.com/vuln/430290
- https://vuldb.com/vuln/430290/cti
Original description
A vulnerability has been found in Umami 3.3.x/3.4.0/3.4.1. This affects an unknown part of the file src/app/api/auth/login/route.ts of the component 2FA Policy Handler. The manipulation leads to use of single-factor authentication. It is possible to initiate the attack 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.