CVE-2026-121582
Umami Record API Endpoint route.ts authorization
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Umami n/a |
3.4.0 (affected) 3.4.1 (affected) |
CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.9 medium |
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 | CNA: VulDB |
| 3.1 / 6.5 medium |
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 | CNA: VulDB |
| 3.0 / 6.5 medium |
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C | CNA: VulDB |
| 2.0 / 6.4 medium |
AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:C | CNA: VulDB |
| 4.0 / 5.5 medium |
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L | NVD: [email protected] |
| 2.0 / 6.4 medium |
AV:N/AC:L/Au:N/C:N/I:P/A:P | NVD: [email protected] |
Exploit evidence
References
- https://vuldb.com/vuln/430425CNA: VulDB · vdb-entry, technical-description
- https://vuldb.com/vuln/430425/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-121582CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/1019998CNA: VulDB · third-party-advisory
- https://github.com/waterhunter2000-svg/vulnerability-reportsCNA: VulDB · related
- https://github.com/umami-software/umami/security/advisories/GHSA-4cww-5p37-v8r2CNA: VulDB · broken-link
- https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.mdCNA: VulDB · exploit
- https://github.com/umami-software/umami/security/advisories/GHSA-4cww-5p37-v8r2[email protected]
- https://github.com/waterhunter2000-svg/vulnerability-reports[email protected]
- https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.md[email protected]
- https://vuldb.com/cve/CVE-2026-121582[email protected]
- https://vuldb.com/submit/1019998[email protected]
- https://vuldb.com/vuln/430425[email protected]
- https://vuldb.com/vuln/430425/cti[email protected]
For agents and automation
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Endpoints and access details
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