{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46678", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-15T21:46:51.547Z", "datePublished": "2026-07-29T20:16:45.986Z", "dateUpdated": "2026-07-29T20:16:45.986Z"}, "containers": {"cna": {"title": "Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv4-mapped IPv6 (Incomplete fix of CVE-2026-25580)", "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-cqp8-fcvh-x7r3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-cqp8-fcvh-x7r3"}, {"name": "https://github.com/pydantic/pydantic-ai/releases/tag/v1.99.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/pydantic/pydantic-ai/releases/tag/v1.99.0"}], "affected": [{"vendor": "pydantic", "product": "pydantic-ai", "versions": [{"version": ">= 1.56.0, < 1.99.0", "status": "affected"}]}, {"vendor": "pydantic", "product": "pydantic-ai-slim", "versions": [{"version": ">= 1.56.0, < 1.99.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-29T20:16:45.986Z"}, "descriptions": [{"lang": "en", "value": "Pydantic AI is a Python agent framework for building Generative AI applications. In versions 1.56.0 through 1.98.0, when an application opts a URL into force_download='allow-local' (disabling the default block on private/internal IPs), the cloud-metadata blocklist could be bypassed by encoding the metadata IP in an IPv6 transition form (IPv4-mapped IPv6, 6to4, or NAT64), exposing cloud IAM short-term credentials on dual-stack or translated networks. This is an incomplete fix of GHSA-2jrp-274c-jhv3 / CVE-2026-25580, whose remediation did not hold for IPv6-encoded forms of the metadata IPs. An application is affected only if it explicitly opts a FileUrl (ImageUrl, AudioUrl, VideoUrl, DocumentUrl) into force_download='allow-local' on a URL influenced by untrusted input; it is not affected when using bundled integrations to ingest user input (Agent.to_web / clai web, VercelAIAdapter, AGUIAdapter / Agent.to_ag_ui), since they do not propagate force_download from external data, nor when downloading only from developer-controlled URLs. This issue has been fixed in version 1.99.0."}], "source": {"advisory": "GHSA-cqp8-fcvh-x7r3", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.56.0,1.99.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "pydantic-ai", "source": "cna", "vendor": "pydantic"}, "product": "pydantic-ai", "vendor": "pydantic"}], "created": "2026-07-29T21:30:04.249393+00:00", "updated": "2026-07-29T21:30:04.249436+00:00", "vendors": ["pydantic", "pydantic$PRODUCT$pydantic-ai"]}