CVE-2026-92121Apache WSS4J: WS-SecurityPolicy signature checks skipped in the streaming code after an STR-Transform reference
Updated under an hour ago ()
Does this affect you?
It affects Apache Software Foundation Apache WSS4J and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.55%, higher than 44% of scored CVEs.
Do this next
Free account, 1 product
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.
- CVSS
- 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-693
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.55% (percentile 44)
- Assigned by
- apache
- NVD analysis
- Analyzed
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apache Software Foundation Apache WSS4J apache_software_foundation:apache_wss4j (from the name) | from 4.0.0 before 4.0.2; from 3.0.0 before 3.0.6; before 2.4.4 | CNA record |
apache wss4j apache:wss4j | before 2.4.4; from 3.0.0 before 3.0.6; from 4.0.0 before 4.0.2 | NVD |
References
- https://lists.apache.org/thread.html/oop9p4hpl5o9byosb1qg3z7q1sgnn4pcvendor-advisory
- http://www.openwall.com/lists/oss-security/2026/09/30/12mailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.