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CVE-2018-11776: Apache Struts Remote Code Execution Vulnerability
Apache Struts · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
99.99%EPSS exploit probability (30 days) 100.0th percentile
8.1 HIGHCVSS 3.1
Unknownknown ransomware use
1,169days from NVD publication to KEV
What it is
Apache Struts contains a vulnerability that allows for remote code execution under two circumstances. One, where the alwaysSelectFullNamespace option is true and the value isn't set for a result defined in underlying configurations and in same time, its upper package configuration have no or wildcard namespace. Or, using URL tag which doesn't have value and action set and in same time, its upper package configuration have no or wildcard namespace.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-20 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2018-08-22 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2018-11776.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.