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    2 vulnerabilities by handnot2

    CVE-2026-28809 (GCVE-0-2026-28809)

    Vulnerability from nvd – Published: 2026-03-23 10:09 – Updated: 2026-05-27 15:41
    VLAI
    Title
    XXE in esaml SAML library allows local file read and potential SSRF
    Summary
    XML External Entity (XXE) vulnerability in esaml (and its forks) allows an attacker to cause the system to read local files and incorporate their contents into processed SAML documents, and potentially perform SSRF via crafted SAML messages. esaml parses attacker-controlled SAML messages using xmerl_scan:string/2 before signature verification without disabling XML entity expansion. On Erlang/OTP versions before 27, Xmerl allows entities by default, enabling pre-signature XXE attacks. An attacker can cause the host to read local files (e.g., Kubernetes-mounted secrets) into the SAML document. If the attacker is not a trusted SAML SP, signature verification will fail and the document is discarded, but file contents may still be exposed through logs or error messages. This issue affects all versions of esaml, including forks by arekinath, handnot2, and dropbox. Users running on Erlang/OTP 27 or later are not affected due to Xmerl defaulting to entities disabled.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-611 - Improper Restriction of XML External Entity Reference
    Assigner
    EEF
    Impacted products
    Vendor Product Version
    dropbox esaml     cpe:2.3:a:dropbox:esaml:*:*:*:*:*:*:*:*
        cpe:2.3:a:arekinath:esaml:*:*:*:*:*:*:*:*
        cpe:2.3:a:handnot2:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    arekinath esaml     cpe:2.3:a:arekinath:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    handnot2 esaml     cpe:2.3:a:handnot2:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    dropbox esaml     cpe:2.3:a:dropbox:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Jump-App esaml Affected: 0 , < bab85efde7c136911402a881ca55173759467a26 (git)
    Unaffected: bab85efde7c136911402a881ca55173759467a26 (git)
        cpe:2.3:a:jump-app:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Credits
    Bryan Lynch Jonatan Männchen / EEF
    Show details on NVD website

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    CVE-2026-28809 (GCVE-0-2026-28809)

    Vulnerability from cvelistv5 – Published: 2026-03-23 10:09 – Updated: 2026-05-27 15:41
    VLAI
    Title
    XXE in esaml SAML library allows local file read and potential SSRF
    Summary
    XML External Entity (XXE) vulnerability in esaml (and its forks) allows an attacker to cause the system to read local files and incorporate their contents into processed SAML documents, and potentially perform SSRF via crafted SAML messages. esaml parses attacker-controlled SAML messages using xmerl_scan:string/2 before signature verification without disabling XML entity expansion. On Erlang/OTP versions before 27, Xmerl allows entities by default, enabling pre-signature XXE attacks. An attacker can cause the host to read local files (e.g., Kubernetes-mounted secrets) into the SAML document. If the attacker is not a trusted SAML SP, signature verification will fail and the document is discarded, but file contents may still be exposed through logs or error messages. This issue affects all versions of esaml, including forks by arekinath, handnot2, and dropbox. Users running on Erlang/OTP 27 or later are not affected due to Xmerl defaulting to entities disabled.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-611 - Improper Restriction of XML External Entity Reference
    Assigner
    EEF
    Impacted products
    Vendor Product Version
    dropbox esaml     cpe:2.3:a:dropbox:esaml:*:*:*:*:*:*:*:*
        cpe:2.3:a:arekinath:esaml:*:*:*:*:*:*:*:*
        cpe:2.3:a:handnot2:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    arekinath esaml     cpe:2.3:a:arekinath:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    handnot2 esaml     cpe:2.3:a:handnot2:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    dropbox esaml     cpe:2.3:a:dropbox:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Jump-App esaml Affected: 0 , < bab85efde7c136911402a881ca55173759467a26 (git)
    Unaffected: bab85efde7c136911402a881ca55173759467a26 (git)
        cpe:2.3:a:jump-app:esaml:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Credits
    Bryan Lynch Jonatan Männchen / EEF
    Show details on NVD website

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