CVE-2018-11776: Apache Struts Remote Code Execution Vulnerability

Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-10bb17d19cd7, updated 2026-11-02T23:39:54.475Z.

CISA Known Exploited Vulnerabilities

Name
Apache Struts Remote Code Execution Vulnerability
Vendor
Apache
Product
Struts
Added to the catalog
2021-11-03
Due date for US federal agencies
2022-05-03
Weaknesses
CWE-20
Catalog version
2026.10.30

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.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status
Analyzed
Published
2018-08-22T13:29:00.753
Last modified
2026-06-17T01:36:34.350
Weaknesses
NVD-CWE-noinfo

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

MetricScoreSeverityVectorScored by
CVSS 3.18.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H[email protected] (Primary)
CVSS 3.18.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
CVSS 2.09.3HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C[email protected] (Primary)

References

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:41:35.381Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2018-11776

CVE record

Assigner
apache
State
PUBLISHED
Published
2018-08-22T13:00:00.000Z
Updated
2025-10-21T23:45:48.386Z
Problem types
Remote Code Execution

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

References

Read on 2026-11-03T00:36:16.036Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2018/11xxx/CVE-2018-11776.json

Also known as / affected packages

Sources and licences

  • CISA

    Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.

    CC0 1.0 Universal

  • National Vulnerability Database (NIST)

    This product uses the NVD API but is not endorsed or certified by the NVD.

    NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)

  • CVE Program, The MITRE Corporation

    Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

    CVE Program Terms of Use ("CVE Usage" licence)

  • GitHub Advisory Database via OSV.dev

    GHSA-cr6j-3jp9-rw65: GitHub Advisory Database, https://github.com/advisories/GHSA-cr6j-3jp9-rw65. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/), provided as is, without warranties. Retrieved via OSV.dev (https://osv.dev/vulnerability/GHSA-cr6j-3jp9-rw65), which enriches records; fields selected and reformatted by ransomware-tracker.com.

    CC BY 4.0

Cite this page

Dragons Eye Ransomware Tracker, "CVE-2018-11776: Apache Struts Remote Code Execution Vulnerability",
entity page, dataset version ref-10bb17d19cd7, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2018-11776 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T01:36:34.350.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-21T23:45:48.386Z.
Underlying source: GitHub Advisory Database, GHSA-cr6j-3jp9-rw65, via OSV.dev, modified 2025-10-22T19:26:43.207029Z.

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