{"answers":{"affected":"6 open source packages ship an affected version, including pydantic-ai and pydantic-ai-slim. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-46678 in the wild and no public exploit code.","fix":"Upgrade pydantic-ai to 1.99.0 or later.","what":"CVE-2026-46678 is a medium-severity server-side request forgery vulnerability in pydantic-ai, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-46678 and fix it if it is affected.\n\nWhat it is: CVE-2026-46678 is a medium-severity server-side request forgery vulnerability in pydantic-ai, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-46678 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pydantic-ai (PyPI): affected from 1.56.0; fixed in 1.99.0\n- pydantic-ai (PyPI): affected from 1.56.0; fixed in 1.99.0\n- pydantic-ai (PyPI): affected from 1.56.0; fixed in 1.99.0\n- pydantic-ai-slim (PyPI): affected from 1.56.0; fixed in 1.99.0\n- pydantic-ai-slim (PyPI): affected from 1.56.0; fixed in 1.99.0\n- pydantic-ai-slim (PyPI): affected from 1.56.0; fixed in 1.99.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-46678/ (Markdown: https://insights.sbomify.com/CVE-2026-46678/index.md)","id":"CVE-2026-46678","markdown":"https://insights.sbomify.com/CVE-2026-46678/index.md","name":"CVE-2026-46678","record":{"aliases":["GHSA-cqp8-fcvh-x7r3","PYSEC-2026-2978","PYSEC-2026-2982","ROOT-APP-PYPI-CVE-2026-46678"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","privilege_escalation"],"network_reachable":"yes","non_default_config":true,"product_category":"Python AI agent framework","requires_auth":"none","summary":"Attackers can bypass cloud metadata blocklists via IPv6 encoding to steal IAM credentials if developers explicitly enable local file downloads.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"pydantic_ai","vendor":"pydantic"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv4-mapped IPv6 (Incomplete fix of CVE-2026-25580)","id":"CVE-2026-46678","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":6,"n_references":2,"next":{"headline":"libp2p: Memory DoS via subscription flood of unique topics","id":"CVE-2026-46679"},"packages":[{"ecosystem":"PyPI","fixed":["1.99.0"],"introduced":["1.56.0"],"last_affected":[],"package":"pydantic-ai","purl":null,"source":"GHSA-cqp8-fcvh-x7r3"},{"ecosystem":"PyPI","fixed":["1.99.0"],"introduced":["1.56.0"],"last_affected":[],"package":"pydantic-ai","purl":"pkg:pypi/pydantic-ai","source":"GHSA-cqp8-fcvh-x7r3"},{"ecosystem":"PyPI","fixed":["1.99.0"],"introduced":["1.56.0"],"last_affected":[],"package":"pydantic-ai","purl":"pkg:pypi/pydantic-ai","source":"PYSEC-2026-2978"},{"ecosystem":"PyPI","fixed":["1.99.0"],"introduced":["1.56.0"],"last_affected":[],"package":"pydantic-ai-slim","purl":null,"source":"GHSA-cqp8-fcvh-x7r3"},{"ecosystem":"PyPI","fixed":["1.99.0"],"introduced":["1.56.0"],"last_affected":[],"package":"pydantic-ai-slim","purl":"pkg:pypi/pydantic-ai-slim","source":"GHSA-cqp8-fcvh-x7r3"},{"ecosystem":"PyPI","fixed":["1.99.0"],"introduced":["1.56.0"],"last_affected":[],"package":"pydantic-ai-slim","purl":"pkg:pypi/pydantic-ai-slim","source":"PYSEC-2026-2982"}],"prev":{"headline":"Russh: Unchecked CryptoVec allocation and growth handling is reachable","id":"CVE-2026-46673"},"products":["pydantic-ai","pydantic-ai-slim"],"published":"2026-07-29","related":[{"cvss_score":8.6,"headline":"Pydantic AI Affected by Server-Side Request Forgery (SSRF) in URL Download Handling","id":"CVE-2026-25580","kev_date_added":null,"published":"2026-02-06"},{"cvss_score":7.6,"headline":"Pydantic AI Web chat UI (`Agent.to_web()`, `clai web`): a website visited by the developer can trigger agent runs and server-side tool execution on the local chat endpoint","id":"CVE-2026-107295","kev_date_added":null,"published":"2026-10-08"},{"cvss_score":7.5,"headline":"Pydantic AI: Concurrency-limited models can keep their slot when a streamed request ends early","id":"CVE-2026-107286","kev_date_added":null,"published":"2026-10-08"},{"cvss_score":7.1,"headline":"Pydantic AI affected by Stored XSS via Path Traversal in Web UI CDN URL","id":"CVE-2026-25640","kev_date_added":null,"published":"2026-02-06"},{"cvss_score":6.8,"headline":"Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv6 zone identifiers","id":"CVE-2026-107289","kev_date_added":null,"published":"2026-10-08"},{"cvss_score":6.8,"headline":"Pydantic AI: Unvalidated UploadedFile references in UI adapters allow server-side file access using the application's credentials","id":"CVE-2026-54249","kev_date_added":null,"published":"2026-07-29"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-30","vendors":["pydantic"]},"summary":"Attackers can bypass cloud metadata blocklists via IPv6 encoding to steal IAM credentials if developers explicitly enable local file downloads.","url":"https://insights.sbomify.com/CVE-2026-46678/"}