CVE-2026-117504 (GCVE-0-2026-117504)

Vulnerability from cvelistv5 – Published: 2026-10-27 14:00 – Updated: 2026-10-27 14:00 X_Open Source
VLAI
Title
a2aproject a2a-go Distributed Manager distributed_manager.go Cancel denial of service
Summary
A vulnerability was identified in a2aproject a2a-go up to 2.4.0. The affected element is the function Cancel of the file internal/taskexec/distributed_manager.go of the component Distributed Manager. Such manipulation leads to denial of service. It is possible to launch the attack remotely. Upgrading to version 2.5.0 is sufficient to fix this issue. The name of the patch is 14e41a978b31e134ffa1170d8657f9dd98529aa3. Upgrading the affected component is advised.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3867 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
a2aproject a2a-go Affected: 2.0
Affected: 2.1
Affected: 2.2
Affected: 2.3
Affected: 2.4.0
Unaffected: 2.5.0
    cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
colorfullbz (VulDB User)
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Distributed Manager"
          ],
          "product": "a2a-go",
          "vendor": "a2aproject",
          "versions": [
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              "version": "2.0"
            },
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            },
            {
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              "version": "2.3"
            },
            {
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            },
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            }
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      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "colorfullbz (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was identified in a2aproject a2a-go up to 2.4.0. The affected element is the function Cancel of the file internal/taskexec/distributed_manager.go of the component Distributed Manager. Such manipulation leads to denial of service. It is possible to launch the attack remotely. Upgrading to version 2.5.0 is sufficient to fix this issue. The name of the patch is 14e41a978b31e134ffa1170d8657f9dd98529aa3. Upgrading the affected component is advised."
        }
      ],
      "metrics": [
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X",
            "version": "4.0"
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            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C",
            "version": "2.0"
          }
        }
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      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2026-10-27T14:00:17.060Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
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          "name": "VDB-427071 | a2aproject a2a-go Distributed Manager distributed_manager.go Cancel denial of service",
          "tags": [
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            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/427071"
        },
        {
          "name": "VDB-427071 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
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            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/427071/cti"
        },
        {
          "name": "CVE-2026-117504 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-117504"
        },
        {
          "name": "Submit #1015053 | a2aproject a2a-go \u2264 v2.4.0 CWE-404",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/1015053"
        },
        {
          "tags": [
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            "patch"
          ],
          "url": "https://github.com/a2aproject/a2a-go/pull/409"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/a2aproject/a2a-go/commit/14e41a978b31e134ffa1170d8657f9dd98529aa3"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/a2aproject/a2a-go/"
        }
      ],
      "tags": [
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          "time": "2026-10-27T00:00:00.000Z",
          "value": "Advisory disclosed"
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          "time": "2026-10-27T01:00:00.000Z",
          "value": "VulDB entry created"
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          "lang": "en",
          "time": "2026-10-27T09:52:46.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "a2aproject a2a-go Distributed Manager distributed_manager.go Cancel denial of service",
      "x_generator": [
        "VulDB PVTS v202610"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-117504",
    "datePublished": "2026-10-27T14:00:17.060Z",
    "dateReserved": "2026-10-27T08:47:24.096Z",
    "dateUpdated": "2026-10-27T14:00:17.060Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-117504",
      "date": "2026-10-28",
      "epss": "0.00552",
      "percentile": "0.4602"
    },
    "nvd": {
      "cve": {
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            "affectedData": [
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                "cpes": [
                  "cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*"
                ],
                "modules": [
                  "Distributed Manager"
                ],
                "product": "a2a-go",
                "vendor": "a2aproject",
                "versions": [
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                    "version": "2.0"
                  },
                  {
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                    "version": "2.1"
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            ],
            "source": "cna@vuldb.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability was identified in a2aproject a2a-go up to 2.4.0. The affected element is the function Cancel of the file internal/taskexec/distributed_manager.go of the component Distributed Manager. Such manipulation leads to denial of service. It is possible to launch the attack remotely. Upgrading to version 2.5.0 is sufficient to fix this issue. The name of the patch is 14e41a978b31e134ffa1170d8657f9dd98529aa3. Upgrading the affected component is advised."
          }
        ],
        "id": "CVE-2026-117504",
        "lastModified": "2026-10-27T14:52:13.410",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
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                "accessVector": "NETWORK",
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                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
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              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
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                "confidentialityImpact": "NONE",
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                "userInteraction": "NONE",
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          "cvssMetricV40": [
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                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
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                "attackRequirements": "NONE",
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                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
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                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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        "vulnStatus": "Deferred",
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    }
  }
}



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