CVE-2026-54442

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    CVE-2026-54442

    Published: 5 Nov 2026Last Modified: 7 Nov 2026

    Summary: NationalSecurityAgency/emissary: Incomplete fix for CVE-2026-35571: SSRF

    Details: Emissary is a P2P based data-driven workflow engine. Prior to 8.51.0, the VALID_LINK validation in src/main/java/emissary/server/mvc/NavAction.java accepts protocol-relative URLs when processing configured navigation links. Browser URL normalization can interpret these accepted strings as external origins. The authoritative advisory attributes open redirect, server-side request forgery, and cloud metadata access to this bypass, but it identifies neither the server-side dereference path nor how navigation-link processing reaches that path. This issue is fixed in version 8.51.0.

    References: https://github.com/NationalSecurityAgency/emissary/releases/tag/8.51.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54442.json, https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-c6q7-wqw2-h65w, https://nvd.nist.gov/vuln/detail/CVE-2026-54442, https://github.com/NationalSecurityAgency/emissary/commit/e0179f7558cfb09a5bbc63a2f9fcb50f899768f6

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -02d704faae463c5bdaa78916f631bc6bf23d2cd6

    Affected versions

    7.19.0

    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-2026-54442 | CVE-DB