CVE-2026-121582

MEDIUM 6.5

Umami Record API Endpoint route.ts authorization

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639 CWE-285
Vendor	n/a
Product	umami
Published	Nov 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / Umami

3.4.0 3.4.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/430425 vuldb.com: https://vuldb.com/vuln/430425/cti vuldb.com: https://vuldb.com/cve/CVE-2026-121582 vuldb.com: https://vuldb.com/submit/1019998 github.com: https://github.com/waterhunter2000-svg/vulnerability-reports github.com: https://github.com/umami-software/umami/security/advisories/GHSA-4cww-5p37-v8r2 github.com: https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.md

Credits

🔍 waterhunter (VulDB User) VulDB CNA Team