CVE-2026-121582

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    CVE-2026-121582

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: Umami Record API Endpoint route.ts authorization

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121582.json, https://github.com/umami-software/umami/security/advisories/GHSA-4cww-5p37-v8r2, https://nvd.nist.gov/vuln/detail/CVE-2026-121582, https://vuldb.com/cve/CVE-2026-121582, https://vuldb.com/submit/1019998, https://vuldb.com/vuln/430425, https://vuldb.com/vuln/430425/cti, https://github.com/waterhunter2000-svg/vulnerability-reports, https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/02-umami-record-unauth-write.md

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- ec0ff50388c264ed8ce46f00967e92f7e71476ae
    Fixed -None

    Affected versions

    3.4.0
    3.4.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-121582 | CVE-DB