FKIE_CVE-2026-17534

Vulnerability from fkie_nvd - Published: 2026-07-27 10:16 - Updated: 2026-07-27 20:37
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
Summary
Kimi Code (@moonshot-ai/kimi-code) before 0.27.0 implements FetchURL SSRF hardening as a static hostname and IP-literal denylist in assertSafeFetchTarget, without resolving DNS or re-validating hosts after HTTP redirects. An attacker who can influence a FetchURL call (for example via prompt injection) can supply a crafted public hostname that resolves to loopback or another internal address, or a public URL that redirects to such a target, and thereby reach internal network services that the denylist was intended to block. FetchURL is included in the default auto-approve tool set, so the call does not require interactive user confirmation in manual mode.
References
reefs@jfrog.comhttps://github.com/MoonshotAI/kimi-code
reefs@jfrog.comhttps://github.com/MoonshotAI/kimi-code/commit/31449728b72df94e22bcb2de350a1e7624895e30
reefs@jfrog.comhttps://github.com/MoonshotAI/kimi-code/pull/1791
reefs@jfrog.comhttps://github.com/MoonshotAI/kimi-code/releases/tag/%40moonshot-ai%2Fkimi-code%400.27.0
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/MoonshotAI/kimi-code",
          "defaultStatus": "unaffected",
          "packageName": "@moonshot-ai/kimi-code",
          "product": "Kimi Code",
          "programFiles": [
            "packages/agent-core-v2/src/app/web/providers/local-fetch-url.ts",
            "packages/agent-core/src/tools/providers/local-fetch-url.ts",
            "packages/agent-core-v2/src/agent/permissionPolicy/policies/default-tool-approve.ts"
          ],
          "repo": "git://github.com/MoonshotAI/kimi-code",
          "vendor": "MoonshotAI",
          "versions": [
            {
              "lessThan": "0.27.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "reefs@jfrog.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kimi Code (@moonshot-ai/kimi-code) before 0.27.0 implements FetchURL SSRF hardening as a static hostname and IP-literal denylist in assertSafeFetchTarget, without resolving DNS or re-validating hosts after HTTP redirects. An attacker who can influence a FetchURL call (for example via prompt injection) can supply a crafted public hostname that resolves to loopback or another internal address, or a public URL that redirects to such a target, and thereby reach internal network services that the denylist was intended to block. FetchURL is included in the default auto-approve tool set, so the call does not require interactive user confirmation in manual mode."
    }
  ],
  "id": "CVE-2026-17534",
  "lastModified": "2026-07-27T20:37:16.927",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 4.0,
        "source": "reefs@jfrog.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-17534",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-27T10:23:54.927637Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-27T10:16:37.747",
  "references": [
    {
      "source": "reefs@jfrog.com",
      "url": "https://github.com/MoonshotAI/kimi-code"
    },
    {
      "source": "reefs@jfrog.com",
      "url": "https://github.com/MoonshotAI/kimi-code/commit/31449728b72df94e22bcb2de350a1e7624895e30"
    },
    {
      "source": "reefs@jfrog.com",
      "url": "https://github.com/MoonshotAI/kimi-code/pull/1791"
    },
    {
      "source": "reefs@jfrog.com",
      "url": "https://github.com/MoonshotAI/kimi-code/releases/tag/%40moonshot-ai%2Fkimi-code%400.27.0"
    }
  ],
  "sourceIdentifier": "reefs@jfrog.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "reefs@jfrog.com",
      "type": "Secondary"
    }
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.