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wss4j — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2026-92121

In the WSS4J streaming (StAX) code, a signature reference using the WS-Security STR-Transform leaves an internal "inside signed content" flag permanently set. The WS-SecurityPolicy enforcer uses that flag to decide whether an element needs checking, so it stops evaluating SignedParts and SignedElements for the rest of the message. A policy requiring the SOAP Body to be signed is then satisfied even when the Body carries no signature, removing the protection against XML Signature Wrapping. Signature verification itself is unaffected. The DOM code is not affected. 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-2026-92121
Confirmed fixed CVEs
Not specified
Updated in this feed
28 Oct 2026, 03:40 UTC · Revision 1

Source evidence

DEBIAN-CVE-2026-92121

core-osv · Original source

Published 30 Sept 2026, 13:17 UTC

In the WSS4J streaming (StAX) code, a signature reference using the WS-Security STR-Transform leaves an internal "inside signed content" flag permanently set. The WS-SecurityPolicy enforcer uses that flag to decide whether an element needs checking, so it stops evaluating SignedParts and SignedElements for the rest of the message. A policy requiring the SOAP Body to be signed is then satisfied even when the Body carries no signature, removing the protection against XML Signature Wrapping. Signature verification itself is unaffected. The DOM code is not affected. 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-2026-92121

wss4j

Fixed versions: Not specified

wss4j

Fixed versions: Not specified

Complete source record
{
  "id": "aa753ece4ead5accd64f4cc18773113d7cb0fb58368206c7f7b89cc27d6665cd",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-92121",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-92121",
    "summary": "In the WSS4J streaming (StAX) code, a signature reference using the WS-Security STR-Transform leaves an internal \"inside signed content\" flag permanently set. The WS-SecurityPolicy enforcer uses that flag to decide whether an element needs checking, so it stops evaluating SignedParts and SignedElements for the rest of the message. A policy requiring the SOAP Body to be signed is then satisfied even when the Body carries no signature, removing the protection against XML Signature Wrapping. Signature verification itself is unaffected. The DOM code is not affected. 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-2026-92121",
    "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": "high",
    "structured": {
      "id": "DEBIAN-CVE-2026-92121",
      "aliases": [
        "DEBIAN-CVE-2026-92121"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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-2026-92121.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-2026-92121.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-07T09:47:28.987175382Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-92121"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-92121"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-92121",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 94645,
  "published_at": "2026-09-30T13:17:21.71+00:00"
}