October 5, 2026

CVE Watchtower

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CVE-2026-104711NVD

Vulnerability Summary

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.
Severity Level
UNKNOWN
Published Date
Oct 5, 2026
Last Modified
Oct 5, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
Data Pending
Root Weakness (CWE)
CWE-917: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

Affected & Patched Versions

Affected Versions
  • Apache Software Foundation Apache Struts >= 2.0.0 and <= 2.3.37
  • Apache Software Foundation Apache Struts >= 2.5.0 and <= 2.5.33
  • Apache Software Foundation Apache Struts >= 6.0.0 and <= 6.11.0
  • Apache Software Foundation Apache Struts >= 7.0.0 and <= 7.3.0
Patched Versions
  • Apache Software Foundation Apache Struts 2.3.37
  • Apache Software Foundation Apache Struts 2.5.33
  • Apache Software Foundation Apache Struts 6.11.0
  • Apache Software Foundation Apache Struts 7.3.0
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References