CVE-2026-121582 json
Umami Record API Endpoint route.ts authorization
published 2026-11-03 5 d ago modified 2026-11-03 5 d ago also EUVD-2026-116595
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | 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 | 3.1 | 6.5 | 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 | 3.0 | 6.5 | 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 | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:C |
| CNA | 4.0 | 5.5 | 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 | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
| CNA | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
Affected products
- n/a Umami
Classification
References
-
github.com
/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.md
exploit
-
vuldb.com
/vuln/430425
vdb-entry, technical-description
-
vuldb.com
/vuln/430425/cti
signature, permissions-required
-
vuldb.com
/cve/CVE-2026-121582
third-party-advisory
-
vuldb.com
/submit/1019998
third-party-advisory
-
github.com
/waterhunter2000-svg/vulnerability-reports
related
-
github.com
/umami-software/umami/security/advisories/GHSA-4cww-5p37-v8r2
broken-link
Sources
- CVE List CVE-2026-121582
- NVD CVE-2026-121582
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.