CVE-2026-121434

    Dashboard / Vulnerabilities / CVE-2026-121434

    CVE-2026-121434

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: Froxlor 2.3.0 before 2.3.15 Authorization Bypass via Certificates.update API

    Details: Froxlor 2.3.0 before 2.3.15 contains a missing authorization check in the Certificates.add and Certificates.update API commands, which do not verify whether a domain's certificate is Let's Encrypt-managed. Customers with API access can overwrite the managed certificate and private key with an attacker-chosen pair, which a REBUILD_VHOST task deploys to the webserver, breaking HTTPS and desynchronizing ACME automation.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121434.json, https://github.com/froxlor/froxlor/security/advisories/GHSA-ch7m-649m-x7xg, https://nvd.nist.gov/vuln/detail/CVE-2026-121434, https://www.vulncheck.com/advisories/froxlor-2.3.0-before-2.3.15-authorization-bypass-via-certificates-update-api

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- e1ffb710108c6fd7deb9cc3858b185e78186ea8b
    Fixed -754191921a0d21b6cb109a730f97999d23243ec4

    Affected versions

    2.3.14
    2.3.13
    2.3.12
    2.3.11
    2.3.10
    2.3.9
    2.3.8
    2.3.7
    2.3.6
    2.3.5
    2.3.4
    2.3.3
    2.3.2
    2.3.1
    2.3.0

    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-2026-121434 | CVE-DB