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wss4j — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-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.

Products
wss4j
Affected versions
1.6.19-4
Fixed versions
Not specified
CVEs
CVE-2026-87830
Confirmed fixed CVEs
Not specified
Updated in this feed
28 Oct 2026, 03:40 UTC · Revision 1

Source evidence

DEBIAN-CVE-2026-87830

core-osv · Original source

Published 30 Sept 2026, 12:17 UTC

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.

osv:DEBIAN-CVE-2026-87830

wss4j

Fixed versions: Not specified

wss4j

Fixed versions: Not specified

Complete source record
{
  "id": "2de6441ad25def1030e257cfd96ab252b1f82b84b80e6c11e34dcfb6185db5c0",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-87830",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-87830",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2026-87830",
    "products": [
      {
        "name": {
          "value": "wss4j",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.6.19-4",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "wss4j",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.6.19-4",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2026-87830",
      "aliases": [
        "DEBIAN-CVE-2026-87830"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wss4j",
            "purl": "pkg:deb/debian/wss4j?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1.6.19-4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87830.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wss4j",
            "purl": "pkg:deb/debian/wss4j?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1.6.19-4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87830.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-07T09:47:32.312880779Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-87830"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-87830"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-87830",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 94655,
  "published_at": "2026-09-30T12:17:14.087+00:00"
}