CVE-2023-20861 in org.springframework:spring-expression - Patched by Root

{
  "id": "1c42432b1fe7973930dbb465aec27b413f417c793c7acbfabe06d044604ba926",
  "url": "https://osv.dev/vulnerability/ROOT-APP-MAVEN-CVE-2023-20861",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-20861 in org.springframework:spring-expression - Patched by Root",
    "summary": "Root has patched CVE-2023-20861 in the org.springframework:spring-expression package for Root:Maven. Multiple fixed versions available.",
    "evidence": "osv:ROOT-APP-MAVEN-CVE-2023-20861",
    "products": [
      {
        "name": {
          "value": "org.springframework:spring-expression",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.3.20-aikido.4",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "5.3.20-aikido.5",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "5.3.20-aikido.6",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "5.3.20-aikido.7",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "5.3.20-aikido.8",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "io.root.org.springframework:spring-expression",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.3.20-root.io.4",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.3.20-root.io.5",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.3.20-root.io.6",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.3.20-root.io.7",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.3.20-root.io.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "ROOT-APP-MAVEN-CVE-2023-20861",
      "aliases": [
        "ROOT-APP-MAVEN-CVE-2023-20861"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.3.20-aikido.4"
                },
                {
                  "fixed": "5.3.20-aikido.5"
                },
                {
                  "fixed": "5.3.20-aikido.6"
                },
                {
                  "fixed": "5.3.20-aikido.7"
                },
                {
                  "fixed": "5.3.20-aikido.8"
                }
              ]
            }
          ],
          "package": {
            "name": "org.springframework:spring-expression",
            "ecosystem": "Root:Maven"
          },
          "database_specific": {
            "source": "https://api.root.io/external/osv/ROOT-APP-MAVEN-CVE-2023-20861.json",
            "root_patched": true,
            "upstream_version": "5.3.20",
            "all_fixed_versions": [
              "5.3.20-aikido.4",
              "5.3.20-aikido.5",
              "5.3.20-aikido.6",
              "5.3.20-aikido.7",
              "5.3.20-aikido.8"
            ],
            "root_patch_version": "aikido.8",
            "total_fixed_versions": 5
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.3.20-root.io.4"
                },
                {
                  "fixed": "5.3.20-root.io.5"
                },
                {
                  "fixed": "5.3.20-root.io.6"
                },
                {
                  "fixed": "5.3.20-root.io.7"
                },
                {
                  "fixed": "5.3.20-root.io.8"
                }
              ]
            }
          ],
          "package": {
            "name": "io.root.org.springframework:spring-expression",
            "ecosystem": "Root:Maven"
          },
          "database_specific": {
            "source": "https://api.root.io/external/osv/ROOT-APP-MAVEN-CVE-2023-20861.json",
            "root_patched": true,
            "upstream_version": "5.3.20",
            "all_fixed_versions": [
              "5.3.20-root.io.4",
              "5.3.20-root.io.5",
              "5.3.20-root.io.6",
              "5.3.20-root.io.7",
              "5.3.20-root.io.8"
            ],
            "root_patch_version": "root.io.8",
            "total_fixed_versions": 5
          }
        }
      ],
      "modified": "2026-10-27T16:15:02.544047555Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-20861"
      ],
      "references": [],
      "provider_metadata": {
        "distro": "maven",
        "source": "Root",
        "severity": "MEDIUM",
        "distro_version": ""
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-20861",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 462845,
  "published_at": "2026-10-27T15:54:58+00:00"
}