Apache Struts2 Content-Type OGNL RCE (CVE-2017-5638)

Exploits CVE-2017-5638 in Apache Struts 2.3.x/2.5.x via OGNL injection in the Content-Type header Jakarta multipart parser. Opens an interactive execute session. !/usr/bin/env python3 -- coding: utf-8 -- """Apache Struts2 Jakarta multipart OGNL RCE CVE-2017-5638.""" import re from kittysploit...

Exposure Of Data Element To Wrong Session

org.apache.struts, struts2-json-plugin is vulnerable to an exposure of data element to wrong session. The vulnerability is due to per-request JSON parsing state being shared across concurrent requests, which allows an attacker to potentially observe data associated with another request and bypass...

Apache Struts2 S2-057 OGNL RCE (CVE-2018-11776)

Exploits CVE-2018-11776 S2-057 OGNL injection via crafted namespace paths when alwaysSelectFullNamespace is enabled. Opens an interactive execute session. !/usr/bin/env python3 -- coding: utf-8 -- """Apache Struts2 S2-057 OGNL RCE CVE-2018-11776 — execute session.""" from future import annotation...

JSON Deserialiser Resource Consumption

This is a proof of concept exploit the researcher has been using for 15 years to demonstrate insecure deserialization with JSON. From: Daniel Owens via Fulldisclosure Date: Sat, 29 Aug 2026 00:11:02 +0000 On 26 October 2025 we published "Struts2 and Related Framework Array/Collection DoS", which...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (>=4.0.2, <=5.0.6), com.jgeppert.struts2.jquery:struts2-jquery-grid-showcase (>=5.0.0, <=5.0.7) +4 more potentially affected by CVE-2026-73634 via org.apache.struts:struts2-json-plugin (>=6.0.0, <=6.10.0)

org.apache.struts:struts2-json-plugin MAVEN version =6.0.0, =4.0.2, =5.0.0, =5.0.0, =5.0.0, =6.0.0, =6.0.0, =6.10.0 Source cves: CVE-2026-73634 Source advisory: SNYK:JAVA-ORGAPACHESTRUTS-19351919...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-plugin (>=6.0.0, <=6.1.0), com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (>=6.0.0, <=6.1.0) +55 more potentially affected by CVE-2026-73634 via org.apache.struts:struts2-core (>=7.0.0, <=7.2.1)

org.apache.struts:struts2-core MAVEN version =7.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =1.0, =7.0.0, =7.0.0, =7.0.0, =7.2.1 and more Source cves: CVE-2026-73634 Source advisory:...

com.amazonaws.serverless:aws-serverless-java-container-struts (>=1.9, <=1.9.5), com.jgeppert.struts2.bootstrap:struts2-bootstrap-plugin (>=4.0.2, <=5.0.6) +79 more potentially affected by CVE-2026-73634 via org.apache.struts:struts2-core (>=6.0.0, <=6.10.0)

org.apache.struts:struts2-core MAVEN version =6.0.0, =1.9, =4.0.2, =4.0.2, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =1.4.0, =1.4.1, =1.4.0, =1.4.3 and more Source cves: CVE-2026-73634 Source advisory: SNYK:JAVA-OR...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (>=6.0.0, <=6.1.0), com.jgeppert.struts2.jquery:struts2-jquery-grid-showcase (>=6.0.0, <=6.1.0) +4 more potentially affected by CVE-2026-73634 via org.apache.struts:struts2-json-plugin (>=7.0.0, <=7.2.1)

org.apache.struts:struts2-json-plugin MAVEN version =7.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =7.0.0, =7.0.0, =7.2.1 Source cves: CVE-2026-73634 Source advisory: SNYK:JAVA-ORGAPACHESTRUTS-19351919...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the endpoint that collects Content Security Policy violation reports. An attacker can cause excessive memory consumption and disrupt service availability by submitting a large,...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-plugin (>=6.0.0, <=6.1.0), com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (>=6.0.0, <=6.1.0) +55 more potentially affected by CVE-2026-73635 via org.apache.struts:struts2-core (>=7.0.0, <=7.2.1)

org.apache.struts:struts2-core MAVEN version =7.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =1.0, =7.0.0, =7.0.0, =7.0.0, =7.2.1 and more Source cves: CVE-2026-73635 Source advisory:...

Allocation of Resources Without Limits or Throttling

Overview org.apache.struts:struts2-core is a popular open-source framework for developing web applications in the Java programming language. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the handling of the localized-text cache. An...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (>=6.0.0, <=6.1.0), com.jgeppert.struts2.jquery:struts2-jquery-grid-showcase (>=6.0.0, <=6.1.0) +4 more potentially affected by CVE-2026-73631 via org.apache.struts:struts2-json-plugin (>=7.0.0, <=7.2.1)

org.apache.struts:struts2-json-plugin MAVEN version =7.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =7.0.0, =7.0.0, =7.2.1 Source cves: CVE-2026-73631 Source advisory: SNYK:JAVA-ORGAPACHESTRUTS-19350821...

Unsynchronized Access to Shared Data in a Multithreaded Context

Overview Affected versions of this package are vulnerable to Unsynchronized Access to Shared Data in a Multithreaded Context in the JSON plugin due to shared parsing state across concurrent requests. An attacker can access data associated with another user's request or bypass configured parsing...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (>=6.0.0, <=6.1.0), com.jgeppert.struts2.jquery:struts2-jquery-grid-showcase (>=6.0.0, <=6.1.0) +4 more potentially affected by CVE-2026-73632 via org.apache.struts:struts2-json-plugin (>=7.0.0, <=7.2.1)

org.apache.struts:struts2-json-plugin MAVEN version =7.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =7.0.0, =7.0.0, =7.2.1 Source cves: CVE-2026-73632 Source advisory: SNYK:JAVA-ORGAPACHESTRUTS-19350835...

Unsynchronized Access to Shared Data in a Multithreaded Context

Overview Affected versions of this package are vulnerable to Unsynchronized Access to Shared Data in a Multithreaded Context in the JSON plugin's SMD/JSON-RPC handling. An attacker can access response content intended for another user's session by making concurrent requests, potentially exposing...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (6.1.0), com.jgeppert.struts2.jquery:struts2-jquery-grid-showcase (6.1.0) +3 more potentially affected by CVE-2026-73632 via org.apache.struts:struts2-json-plugin (7.2.1)

org.apache.struts:struts2-json-plugin MAVEN version 7.2.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.apache.struts:struts2-json-plugin and may be impacted: - com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase 6.1.0 -...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (6.1.0), com.jgeppert.struts2.jquery:struts2-jquery-grid-showcase (6.1.0) +3 more potentially affected by CVE-2026-73631 via org.apache.struts:struts2-json-plugin (7.2.1)

org.apache.struts:struts2-json-plugin MAVEN version 7.2.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.apache.struts:struts2-json-plugin and may be impacted: - com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase 6.1.0 -...

com.jgeppert.struts2.bootstrap:struts2-bootstrap-plugin (>=6.0.0, <=6.1.0), com.jgeppert.struts2.bootstrap:struts2-bootstrap-showcase (>=6.0.0, <=6.1.0) +55 more potentially affected by CVE-2026-73635 via org.apache.struts:struts2-core (>=7.0.0, <=7.2.1)

org.apache.struts:struts2-core MAVEN version =7.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =1.0, =7.0.0, =7.0.0, =7.0.0, =7.2.1 and more Source cves: CVE-2026-73635 Source advisory: MEND:CVE-2026-73635...

com.amazonaws.serverless:aws-serverless-java-container-struts (>=1.9, <=1.9.5), com.jgeppert.struts2.bootstrap:struts2-bootstrap-plugin (>=4.0.2, <=5.0.6) +79 more potentially affected by CVE-2026-73635 via org.apache.struts:struts2-core (>=6.0.0, <=6.10.0)

org.apache.struts:struts2-core MAVEN version =6.0.0, =1.9, =4.0.2, =4.0.2, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =1.4.0, =1.4.1, =1.4.0, =1.4.3 and more Source cves: CVE-2026-73635 Source advisory: MEND:CVE-202...

com.amazonaws.serverless:aws-serverless-java-container-struts (>=1.9, <=1.9.5), com.jgeppert.struts2.bootstrap:struts2-bootstrap-plugin (>=4.0.2, <=5.0.6) +79 more potentially affected by CVE-2026-73634 via org.apache.struts:struts2-core (>=6.0.0, <=6.10.0)

org.apache.struts:struts2-core MAVEN version =6.0.0, =1.9, =4.0.2, =4.0.2, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =5.0.0, =1.4.0, =1.4.1, =1.4.0, =1.4.3 and more Source cves: CVE-2026-73634 Source advisory: MEND:CVE-202...