EUVD-2026-92624
GHSA-3fxc-fh79-w9fr
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Remote, unauthenticated, no interaction, and default-config exposed, so AV:N/AC:L/PR:N/UI:N; availability-only heap exhaustion gives A:H with C:N/I:N and no scope change.
Primary rating from Vendor (CNA).
CVSS VectorVendor
Lifecycle Timeline
3Description PRE-NVD
Articles & Coverage 2
AnalysisAI
Denial of service in the Apache Struts REST plugin affects Struts 2.1.8 through 2.3.37, 2.5.0 through 2.5.33, 6.0.0 through 6.11.0, and 7.0.0 through 7.3.0: a remote unauthenticated request with an oversized body is read into memory without any size bound, letting a single request exhaust the Java heap and deny service to other users. Exposure is limited to applications that actually deploy the optional REST plugin and accept request bodies - Struts core is unaffected, and the vendor confirms that no additional setting has to be enabled for a default REST-plugin deployment to be reachable, while form submissions and multipart uploads are not parsed by the affected code path. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target application actually uses the Apache Struts REST plugin to accept request bodies - applications not using the REST plugin are entirely unaffected (vendor-confirmed). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | No CVSS vector, EPSS score, KEV listing, or POC availability was provided in the input, so quantitative exploitation signals are entirely absent and must be stated as unknown rather than inferred. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: Apache Struts 7.4.0 or, on the 6.x maintenance line, 6.12.0 - both released 2 October 2026 and both imposing the same 2 MB (2,097,152 character) default bound on REST request bodies; the vendor recommends upgrading to at least 7.4.0, or at least 6.12.0 for 6.x users. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Apache Struts deployments to identify applications running affected versions (2.1.8 through 2.3.37, 2.5.0 through 2.5.33, 6.0.0 through 6.11.0, and 7.0.0 through 7.3.0) and confirm whether the optional REST plugin is deployed; for any exposed REST endpoint, immediately enforce a request body limit of 2 MB or less at the reverse proxy or WAF and restrict access to trusted networks where feasible. …
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External POC / Exploit Code
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