{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-17534", "assignerOrgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d", "state": "PUBLISHED", "assignerShortName": "JFROG", "dateReserved": "2026-07-27T09:17:58.055Z", "datePublished": "2026-07-27T09:19:23.982Z", "dateUpdated": "2026-07-27T10:24:05.709Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d", "shortName": "JFROG", "dateUpdated": "2026-07-27T09:24:27.376Z"}, "title": "Kimi Code FetchURL SSRF protection bypass via DNS-resolving hostnames and redirects", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-918", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-664", "descriptions": [{"lang": "en", "value": "CAPEC-664 Server Side Request Forgery"}]}], "affected": [{"vendor": "MoonshotAI", "product": "Kimi Code", "collectionURL": "https://github.com/MoonshotAI/kimi-code", "packageName": "@moonshot-ai/kimi-code", "repo": "git://github.com/MoonshotAI/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"], "versions": [{"status": "affected", "version": "0", "lessThan": "0.27.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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. 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The fix resolves hostnames via DNS and rejects addresses in loopback, RFC1918, link-local, CGNAT, and ULA ranges; follows redirects manually with per-hop revalidation; and pins connections to the validated resolved addresses to reduce DNS-rebinding (TOCTOU) races.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Upgrade to Kimi Code 0.27.0 or later. The fix resolves hostnames via DNS and rejects addresses in loopback, RFC1918, link-local, CGNAT, and ULA ranges; follows redirects manually with per-hop revalidation; and pins connections to the validated resolved addresses to reduce DNS-rebinding (TOCTOU) races.</p>"}]}], "timeline": [{"time": "2026-07-17T03:21:00.000Z", "lang": "en", "value": "Fix merged in MoonshotAI/kimi-code#1791 (FetchURL SSRF hardening)"}, {"time": "2026-07-17T12:48:00.000Z", "lang": "en", "value": "Fix released in @moonshot-ai/kimi-code@0.27.0"}, {"time": "2026-07-16T08:15:00.000Z", "lang": "en", "value": "Issue reported to Moonshot AI"}], "credits": [{"lang": "en", "value": "Natan Nehorai", "type": "finder"}, {"lang": "en", "value": "JFrog Security Research", "type": "coordinator"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-27T10:23:54.927637Z", "id": "CVE-2026-17534", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-27T10:24:05.709Z"}}]}}

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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.", "supportingMedia": [{"type": "text/html", "value": "<p>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. 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