CVE Feed

    Dashboard / CVE / CVE-2026-87830

    CVE-2026-87830

    In the StAX streaming WS-SecurityPolicy validator, certain relative or unsupported XPath expressions can be converted into paths that never match the actual XML element path. A remote SOAP peer may therefore send a required element without the expected signature or encryption. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.

    Published:Sep 30, 2026
    Last Modified:Oct 6, 2026
    EPS:Sep 30, 2026
    EPSS Score:0.00184
    CVSS Score:9.1

    Affected Products

    Vendor
    Apache
    Product
    Wss4j

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-95616 (CVSS 7.5) — An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticat…
    CVE-2026-92899 (CVSS 4.8) — Apache WSS4J remembers the Nonce of each UsernameToken it accepts, so a captured token cannot be reused. It st…
    CVE-2026-92121 (CVSS 7.5) — In the WSS4J streaming (StAX) code, a signature reference using the WS-Security STR-Transform leaves an intern…
    CVE-2026-89238 (CVSS 9.1) — WSS4J EncryptedHeader child confusion could promote an attacker-controlled plaintext element as the decrypted …
    CVE-2026-88920 (CVSS 9.8) — An authentication bypass in the DOM security processor in Apache WSS4J allows unauthenticated remote attackers…
    CVE-2026-85532 (CVSS 7.5) — Apache WSS4J accepted attacker-controlled derived-key lengths and offsets without adequate bounds. This could …
    CVE-2020-13936 (CVSS 8.8) — An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system …
    CVE-2015-0227 (CVSS 5) — Apache WSS4J before 1.6.17 and 2.x before 2.0.2 allows remote attackers to bypass the requireSignedEncryptedDa…
    CVE-2015-0226 (CVSS 7.5) — Apache WSS4J before 1.6.17 and 2.0.x before 2.0.2 improperly leaks information about decryption failures when …
    CVE-2014-3623 (CVSS 5) — Apache WSS4J before 1.6.17 and 2.x before 2.0.2, as used in Apache CXF 2.7.x before 2.7.13 and 3.0.x before 3.…

    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