CVE-2026-89043

    Dashboard / Vulnerabilities / CVE-2026-89043

    CVE-2026-89043

    Published: 10 Sept 2026Last Modified: 11 Sept 2026

    Summary: passport-saml-encrypted through 0.1.13 XML Signature Wrapping via Assertion Prepending

    Details: passport-saml-encrypted through 0.1.13 contains an XML signature wrapping vulnerability where signature verification and assertion extraction use independent XPath lookups with no cross-validation. Attackers holding any validly signed SAML message can prepend a forged unsigned assertion that gets accepted as the verified identity while the genuine signature validates against the original assertion.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89043.json, https://github.com/krakenjs/passport-saml-encrypted, https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L256, https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L328, https://github.com/krakenjs/passport-saml-encrypted/issues/30, https://nvd.nist.gov/vuln/detail/CVE-2026-89043, https://www.npmjs.com/package/passport-saml-encrypted, https://www.vulncheck.com/advisories/passport-saml-encrypted-through-0.1.13-xml-signature-wrapping-via-assertion-prepending

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    v0.1.12
    v0.1.13
    v0.1.13-beta.1
    v0.1.11
    v0.1.10
    v0.1.9
    v0.1.6
    v0.1.5
    v0.1.4
    v0.1.3
    v0.1.1
    v0.1.0

    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-2026-89043 | CVE-DB