Which products and versions are affected by CVE-2026-104711?

Affected: Struts (Apache); org.apache.struts:struts2-core (maven) versions >= 2.0.0; seal.sp1.org.apache.struts:struts2-core. The full list is in the CVE brief.

Is CVE-2026-104711 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-104711 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-104711?

No public exploit code is known.

Is there a fix for CVE-2026-104711?

Fixed versions are available, including Struts 6.12.0, Struts 7.4.0, org.apache.struts:struts2-core 2.5.10+sp999.

How urgently should CVE-2026-104711 be patched?

Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

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WatchlistCritical

CVE-2026-104711Struts Vulnerability

Apache Struts: OGNL injection in the legacy RESTful action mapper

Published Oct 5, 2026 · Updated Oct 10, 2026 · Also known as EUVD-2026-92622, GHSA-wfm5-pq4p-gff9

Key Facts

Patch in the next maintenance window

CVE-2026-104711 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Struts (Apache), org.apache.struts:struts2-core (maven), seal.sp1.org.apache.struts:struts2-core.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 1.2% probability of exploitation in the next 30 days.
Fixed versions are available, including Struts 6.12.0, Struts 7.4.0, org.apache.struts:struts2-core 2.5.10+sp999.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Scores

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

1.2%

Higher than 67.4% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

51/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

Description

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 Products

7 affected entries in total

Product	Affected versions	Fixed in
StrutsApache	See advisory	2.3.37
org.apache.struts:struts2-coremaven	>= 2.0.0	2.5.10+sp999
seal.sp1.org.apache.struts:struts2-coreseal	See advisory	2.5.10+sp999

Patched Releases

Struts

6.12.0, 7.4.0

org.apache.struts:struts2-core

2.5.10+sp999

seal.sp1.org.apache.struts:struts2-core