{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56676","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-22T16:39:01.044Z","datePublished":"2026-07-10T15:30:49.514Z","dateUpdated":"2026-07-10T15:30:49.514Z"},"containers":{"cna":{"title":"9router: Image prefetch DNS rebinding allows SSRF to internal services","problemTypes":[{"descriptions":[{"cweId":"CWE-367","lang":"en","description":"CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx"},{"name":"https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82","tags":["x_refsource_MISC"],"url":"https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82"},{"name":"https://github.com/decolua/9router/releases/tag/v0.5.2","tags":["x_refsource_MISC"],"url":"https://github.com/decolua/9router/releases/tag/v0.5.2"}],"affected":[{"vendor":"decolua","product":"9router","versions":[{"version":"< 0.5.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-10T15:30:49.514Z"},"descriptions":[{"lang":"en","value":"9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can use a vision-capable model and an attacker-controlled DNS name that first resolves to a public IP and then rebinds to an internal address, allowing server-side requests to internal-only HTTP services. This issue is fixed in version 0.5.2."}],"source":{"advisory":"GHSA-cmhj-wh2f-9cgx","discovery":"UNKNOWN"}}}}