CVE-2026-104711

Summary

Improper neutralization of special elements used in an expression language statement ('Expression Language Injection') vulnerability in Apache Struts. If the application is configured to use the legacy RESTful action mapper, a crafted request can inject an OGNL expression that may lead to remote code execution. Struts 7 is affected only when the OGNL allowlist is disabled; it is enabled by default. Applications using the default action mapper, the restful2 mapper, or the Struts REST plugin are not affected.

This issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.11.0, from 7.0.0 through 7.3.0.

Users are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes the issue.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Struts2.0.0 <= 2.3.37affected
Apache Software FoundationApache Struts2.5.0 <= 2.5.33affected
Apache Software FoundationApache Struts6.0.0 <= 6.11.0affected
Apache Software FoundationApache Struts7.0.0 <= 7.3.0affected

Weaknesses

  • CWE-917: CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

ADP Enrichment

CVE Program Container

Additional References

References