CVE-2026-116478 (GCVE-0-2026-116478)

Vulnerability from cvelistv5 – Published: 2026-10-26 19:30 – Updated: 2026-10-26 19:30 X_Open Source
VLAI
Title
a2aproject a2a-go Push Notification agentexec.go CreateExecutor information exposure
Summary
A vulnerability was detected in a2aproject a2a-go up to 2.4.0. This affects the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. The manipulation results in information exposure through error message. It is possible to launch the attack remotely. Upgrading to version 2.5.0 mitigates this issue. The patch is identified as f4d588216b0c9520e94d571bab725c38ce23064c. It is recommended to upgrade the affected component.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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:L/I:N/A:N/E:X/RL:O/RC:C
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C
CWE
  • CWE-209 - Information Exposure Through Error Message
  • CWE-200 - Information Disclosure
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3855 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": {
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      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*"
          ],
          "modules": [
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          ],
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          "vendor": "a2aproject",
          "versions": [
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            },
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            },
            {
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              "version": "2.3"
            },
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          "type": "reporter",
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        }
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          "lang": "en",
          "value": "A vulnerability was detected in a2aproject a2a-go up to 2.4.0. This affects the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. The manipulation results in information exposure through error message. It is possible to launch the attack remotely. Upgrading to version 2.5.0 mitigates this issue. The patch is identified as f4d588216b0c9520e94d571bab725c38ce23064c. It is recommended to upgrade the affected component."
        }
      ],
      "metrics": [
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X",
            "version": "4.0"
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            "version": "2.0"
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        {
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      "providerMetadata": {
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
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          "name": "VDB-426391 | a2aproject a2a-go Push Notification agentexec.go CreateExecutor information exposure",
          "tags": [
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          "url": "https://vuldb.com/vuln/426391"
        },
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          "tags": [
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        },
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          "name": "CVE-2026-116478 | CVE Analysis and Report",
          "tags": [
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          "url": "https://vuldb.com/cve/CVE-2026-116478"
        },
        {
          "name": "Submit #1014887 | a2aproject a2a-go \u2264 v2.4.0 CWE-209",
          "tags": [
            "third-party-advisory"
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          "url": "https://vuldb.com/submit/1014887"
        },
        {
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          "url": "https://github.com/a2aproject/a2a-go/pull/393"
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          "url": "https://github.com/a2aproject/a2a-go/commit/f4d588216b0c9520e94d571bab725c38ce23064c"
        },
        {
          "tags": [
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          "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": "2026-10-26T00:00:00.000Z",
          "value": "Advisory disclosed"
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          "time": "2026-10-26T01:00:00.000Z",
          "value": "VulDB entry created"
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          "time": "2026-10-26T12:05:03.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "a2aproject a2a-go Push Notification agentexec.go CreateExecutor information exposure",
      "x_generator": [
        "VulDB PVTS v202610"
      ]
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-116478",
    "datePublished": "2026-10-26T19:30:19.254Z",
    "dateReserved": "2026-10-26T10:59:44.115Z",
    "dateUpdated": "2026-10-26T19:30:19.254Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-10-28",
      "epss": "0.00432",
      "percentile": "0.37408"
    },
    "nvd": {
      "cve": {
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                "cpes": [
                  "cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*"
                ],
                "modules": [
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                ],
                "product": "a2a-go",
                "vendor": "a2aproject",
                "versions": [
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                    "version": "2.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.1"
                  },
                  {
                    "status": "affected",
                    "version": "2.2"
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                  {
                    "status": "affected",
                    "version": "2.3"
                  },
                  {
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                  }
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            ],
            "source": "cna@vuldb.com"
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability was detected in a2aproject a2a-go up to 2.4.0. This affects the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. The manipulation results in information exposure through error message. It is possible to launch the attack remotely. Upgrading to version 2.5.0 mitigates this issue. The patch is identified as f4d588216b0c9520e94d571bab725c38ce23064c. It is recommended to upgrade the affected component."
          }
        ],
        "id": "CVE-2026-116478",
        "lastModified": "2026-10-27T14:52:13.410",
        "metrics": {
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                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
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              "obtainOtherPrivilege": false,
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                "confidentialityImpact": "LOW",
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                "scope": "UNCHANGED",
                "userInteraction": "NONE",
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          "cvssMetricV40": [
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                "Recovery": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
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                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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                "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:L/VI:N/VA:N/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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              "source": "cna@vuldb.com",
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        "vulnStatus": "Deferred",
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    }
  }
}



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