{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "advisory Pre-authentication",
          "vendor": "Security",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "disclosure via Fulldisclosure"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "0day Rubbish Research Team is publicly disclosing a vulnerability in Apache Struts 2 2.6.11.0 (Apache Software \nFoundation). The research is published and a proof-of-concept is available.\n\nPre-authentication RCE (CVSS 9.8, pre-authentication)\n\nApache Struts 2.6.11.0 is vulnerable to unauthenticated remote code execution under a documented REST mapper \nconfiguration combined with wildcard dynamic dispatch. RestfulActionMapper.getMapping() extracts the action name from \nthe request URI without calling cleanupActionName, the character-set gate that DefaultActionMapper adopted after \nS2-057; that fix was never synchronized to the REST mapper. When an application uses struts.mapper.class=restful with a \nwildcard action and a result containing {1} substitution, attacker-controlled OGNL metacharacters flow through the \nwildcard capture into TextParseUtil.translateVariables, bypassing AcceptedPatternsChecker. A novel \njava.beans.Expression/Statement reflection primitive then defeats the SecurityMemberAccess sandbox and reaches \nRuntime.exec. The chain was verified with uid=0(root) on a Tomcat 9 / OGNL 3.3.5 deployment. The only precondition is \nan opt-in but documented configuration subset (REST mapper plus wildcard dynamic dispatch).\n\nImpact: Arbitrary operating system command execution as the JVM process user; on a root-run deployment, full host \ncompromise. No credentials are required.\n\nAdvisory: https://0day-rubbish.com/blog/apache-struts2-restful-mapper-ognl-rce\n\nPoC and full analysis: https://github.com/Exploit-Garbage/0day-Rubbish\n\n-- \n0day Rubbish Research Team\nhttps://0day-rubbish.com\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T11:37:03Z",
        "orgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
        "shortName": "VULNARCHIVE"
      },
      "references": [
        {
          "tags": [
            "technical-description",
            "exploit"
          ],
          "url": "https://vuln.freearchive.org/archive/full-disclosure/2026/Aug/4"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://seclists.org/fulldisclosure/2026/Aug/4"
        },
        {
          "url": "https://0day-rubbish.com"
        },
        {
          "url": "https://0day-rubbish.com/blog/apache-struts2-restful-mapper-ognl-rce"
        },
        {
          "url": "https://github.com/Exploit-Garbage/0day-Rubbish"
        },
        {
          "url": "https://nmap.org/mailman/listinfo/fulldisclosure"
        },
        {
          "url": "https://seclists.org/fulldisclosure/"
        }
      ],
      "source": {
        "defect": [
          "https://seclists.org/fulldisclosure/2026/Aug/4"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Security advisory: Pre-authentication RCE in Apache Struts 2 2.6.11.0 (Apache Software Foundation)",
      "x_gcve": [
        {
          "recordType": "advisory",
          "relationships": [],
          "vulnId": "GCVE-1988-2026-0052",
          "x_vulnarchive": {
            "archiveUrl": "https://vuln.freearchive.org/archive/full-disclosure/2026/Aug/4",
            "automated": true,
            "contentSha256": "fee326014012576665558b465357a6f742a6c51511c5aadf16abb7a461350217",
            "evidenceScore": 9,
            "messageId": "",
            "originalUrl": "https://seclists.org/fulldisclosure/2026/Aug/4",
            "policy": "vulnarchive-1",
            "sourceFormat": "text/html",
            "sourcePublishedAt": "2026-08-03T03:34:45Z"
          }
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
    "assignerShortName": "VULNARCHIVE",
    "datePublished": "2026-09-07T13:20:21Z",
    "dateUpdated": "2026-09-11T11:37:03Z",
    "state": "PUBLISHED",
    "vulnId": "GCVE-1988-2026-0052"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}