Bug 2546057 (CVE-2026-104711) - CVE-2026-104711 org.apache.struts/struts2-core: Apache Struts: Arbitrary code execution via expression injection in legacy RESTful action mapper
Summary: CVE-2026-104711 org.apache.struts/struts2-core: Apache Struts: Arbitrary code...
Keywords:
Status: NEW
Alias: CVE-2026-104711
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-05 18:55 UTC by OSIDB Bzimport
Modified: 2026-10-05 21:30 UTC (History)
6 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-05 18:55:53 UTC 
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.
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