Improper neutralization of special elements used in an expression language statement ('Expression Language Injection')…
Apache Software Foundation · Apache Struts
Apache Struts contains an expression language injection flaw in its legacy RESTful action mapper, which lets a crafted request inject an OGNL expression into the application. An attacker needs only network access to send the request, with no authentication or user interaction, and the flaw applies only when the application uses the legacy RESTful mapper and, on Struts 7, has the OGNL allowlist disabled.
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.
- Exploited
- Not confirmed
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
Disclosed on 5 Oct 2026. No public exploit code or confirmed exploitation is recorded.
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 8 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- Known_Cve | Oct 14, 2026 | Part 1/313 Oct 2026
- Known_Cve | Oct 13, 2026 | Part 1/212 Oct 2026
- Known_Cve | Oct 12, 2026 | Part 1/211 Oct 2026
- Known_Cve | Oct 11, 2026 | Part 1/210 Oct 2026
- Known_Cve | Oct 10, 2026 | Part 1/29 Oct 2026
- Known_Cve | Oct 9, 2026 | Part 1/28 Oct 2026
- 2 more on OTX