{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-107294", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-07T15:53:23.586Z", "datePublished": "2026-10-08T16:59:25.246Z", "dateUpdated": "2026-10-08T16:59:25.246Z" }, "containers": { "cna": { "title": "Pydantic AI: Unbounded memory use when downloading remote content via web_fetch or FileUrl", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-v2xh-2vp8-57h8", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-v2xh-2vp8-57h8" }, { "name": "https://github.com/pydantic/pydantic-ai/pull/7141", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pydantic/pydantic-ai/pull/7141" }, { "name": "https://github.com/pydantic/pydantic-ai/pull/7308", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pydantic/pydantic-ai/pull/7308" }, { "name": "https://github.com/pydantic/pydantic-ai/commit/7a64d049c3f5271a975cd1d64b2fa876d83ede1d", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pydantic/pydantic-ai/commit/7a64d049c3f5271a975cd1d64b2fa876d83ede1d" }, { "name": "https://github.com/pydantic/pydantic-ai/commit/e3824a58c82864ed26afb2887619834a4eb86cc8", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pydantic/pydantic-ai/commit/e3824a58c82864ed26afb2887619834a4eb86cc8" }, { "name": "https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.2", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.2" }, { "name": "https://github.com/pydantic/pydantic-ai/releases/tag/v2.24.0", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pydantic/pydantic-ai/releases/tag/v2.24.0" } ], "affected": [ { "vendor": "pydantic", "product": "pydantic-ai", "versions": [ { "version": ">= 1.77.0, < 1.107.2", "status": "affected" }, { "version": ">= 2.0.0b1, < 2.24.0", "status": "affected" } ] }, { "vendor": "pydantic", "product": "pydantic-ai-slim", "versions": [ { "version": ">= 1.77.0, < 1.107.2", "status": "affected" }, { "version": ">= 2.0.0b1, < 2.24.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-08T16:59:25.246Z" }, "descriptions": [ { "lang": "en", "value": "Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.77.0 until 1.107.2 and 2.24.0, web_fetch_tool, the WebFetch local fallback, and remote FileUrl media downloads buffer the complete HTTP response body before enforcing content-size controls. An attacker-influenced URL can stream an arbitrarily large response that exhausts process memory and crashes the worker; affected media types include ImageUrl, DocumentUrl, VideoUrl, and AudioUrl. SSRF protections remain effective, and the impact is limited to availability. This issue is fixed in versions 1.107.2 and 2.24.0." } ], "source": { "advisory": "GHSA-v2xh-2vp8-57h8", "discovery": "UNKNOWN" } } } }