Apache Struts: OGNL injection in the legacy RESTful action mapper

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-104711
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-05 19:17:14 UTC
Updated2026-10-05 20:17:08 UTC
DescriptionImproper 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.

Risk And Classification

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Struts affected 2.0.0 2.3.37 semver Not specified
CNA Apache Software Foundation Apache Struts affected 2.5.0 2.5.33 semver Not specified
CNA Apache Software Foundation Apache Struts affected 6.0.0 6.11.0 semver Not specified
CNA Apache Software Foundation Apache Struts affected 7.0.0 7.3.0 semver Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2026/10/05/10 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
cwiki.apache.org/confluence/display/WW/S2-075 [email protected] cwiki.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: LeaveSong (en)

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