CVE-2026-121582: medium-severity vulnerability in Umami
Umami Record API Endpoint route.ts authorization
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
10Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
n/a · UmamiReferences
https://github.com/umami-software/umami/security/advisories/GHSA-4cww-5p37-v8r2https://github.com/waterhunter2000-svg/vulnerability-reportshttps://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.mdhttps://vuldb.com/cve/CVE-2026-121582https://vuldb.com/submit/1019998https://vuldb.com/vuln/430425https://vuldb.com/vuln/430425/cti