ognl — security advisory

{
  "id": "b2b85249b75a231b48ed16b20df837ec7eea898747487514e55db163eb812d29",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-113730",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-113730",
    "summary": "OGNL is an Object Graph Navigation Library for Java. Prior to 3.4.13, the optional stricter-invocation mode in OgnlRuntime.invokeMethod checks the declaring class of the method that OGNL invokes but does not block java.lang.reflect.Method, java.lang.reflect.Constructor, or java.lang.reflect.Field. An attacker-controlled expression can invoke one of these reflection objects as a proxy for a method on a blocked class, causing the real operation to execute inside JDK reflection without passing through the stricter-invocation check again. Exploitation requires an application to evaluate untrusted OGNL expressions, use the default or an equivalently permissive MemberAccess that permits reflection, and rely on stricter invocation as a sandbox. Applications using a restrictive MemberAccess, including Apache Struts with SecurityMemberAccess, are not affected by this bypass. This issue is fixed in 3.4.13.",
    "evidence": "osv:DEBIAN-CVE-2026-113730",
    "products": [
      {
        "name": {
          "value": "ognl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2.7.3-7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.7.3-8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.7.3-9",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "ognl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2.7.3-8",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.7.3-9",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "ognl",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2.7.3-8",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "2.7.3-9",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2026-113730",
      "aliases": [
        "DEBIAN-CVE-2026-113730"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "ognl",
            "purl": "pkg:deb/debian/ognl?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "2.7.3-7",
            "2.7.3-8",
            "2.7.3-9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113730.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "ognl",
            "purl": "pkg:deb/debian/ognl?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "2.7.3-8",
            "2.7.3-9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113730.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "ognl",
            "purl": "pkg:deb/debian/ognl?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "2.7.3-8",
            "2.7.3-9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113730.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:05:11.079703001Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-113730"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-113730"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-113730",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 424288,
  "published_at": "2026-10-20T22:19:30.043+00:00"
}