a2aproject a2a-rs inmemory.rs information disclosure

{
  "id": "59125ab0c1e2dc916d11fd720211cf6d6c3928c3106c7a71e6cb6441dbe8dd84",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-113706",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "a2aproject a2a-rs inmemory.rs information disclosure",
    "summary": "A vulnerability was identified in a2aproject a2a-rs up to 0.4.3. Impacted is an unknown function of the file a2a-server/src/task_store/inmemory.rs. The manipulation of the argument historyLength leads to information disclosure. The attack is possible to be carried out remotely. The identifier of the patch is 68f1b7e772ae5d6c9e581ac9b48bcddd10fe70eb. To fix this issue, it is recommended to deploy a patch.",
    "evidence": "cve:CVE-2026-113706",
    "products": [
      {
        "name": {
          "value": "a2a-rs",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-113706",
      "aliases": [
        "CVE-2026-113706"
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X"
          }
        },
        {
          "cvssV3_1": {
            "version": "3.1",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C"
          }
        },
        {
          "cvssV3_0": {
            "version": "3.0",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C"
          }
        },
        {
          "cvssV2_0": {
            "version": "2.0",
            "baseScore": 4,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N/E:ND/RL:OF/RC:C"
          }
        }
      ],
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:a2aproject:a2a-rs:*:*:*:*:*:*:*:*"
          ],
          "vendor": "a2aproject",
          "product": "a2a-rs",
          "versions": [
            {
              "status": "affected",
              "version": "0.4.0"
            },
            {
              "status": "affected",
              "version": "0.4.1"
            },
            {
              "status": "affected",
              "version": "0.4.2"
            },
            {
              "status": "affected",
              "version": "0.4.3"
            }
          ]
        }
      ],
      "modified": "2026-10-27T21:32:36.017Z",
      "provider": "cve",
      "references": [
        "https://vuldb.com/vuln/422868",
        "https://vuldb.com/vuln/422868/cti",
        "https://vuldb.com/cve/CVE-2026-113706",
        "https://vuldb.com/submit/1015040",
        "https://github.com/a2aproject/a2a-rs/pull/122",
        "https://github.com/a2aproject/a2a-rs/commit/68f1b7e772ae5d6c9e581ac9b48bcddd10fe70eb",
        "https://github.com/a2aproject/a2a-rs/"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-113706",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-27T21:32:25.038527Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-27T21:32:36.017Z"
            }
          }
        ],
        "cna": {
          "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
          "shortName": "VulDB",
          "dateUpdated": "2026-10-20T23:15:22.806Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-113706",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 400591,
  "published_at": "2026-10-20T23:15:22.806+00:00"
}