Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') Affecting org.apache.struts:struts2-core package, versions [2.0.0,6.12.0)[7.0.0,7.4.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Oct 2026
- disclosed5 Oct 2026
- creditLeaveSong
Introduced: 5 Oct 2026
NewCVE-2026-104711 (opens in a new tab)How to fix?
Upgrade org.apache.struts:struts2-core to version 6.12.0, 7.4.0 or higher.
Overview
org.apache.struts:struts2-core is a popular open-source framework for developing web applications in the Java programming language.
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') via RestfulActionMapper.getMapping in the legacy RESTful action mapper. An attacker can achieve remote code execution by sending an OGNL expression in the URI’s action-name segment; the flaw is reachable only when the legacy mapper is configured and, in Struts 7, the OGNL allowlist is disabled.