CVE-2026-107288

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{"bugzilla": {"description": "pydantic-ai: pydantic-ai: Domain blocklist bypass via unnormalized hostname comparison", "id": "2548034", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2548034"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-918", "details": ["A flaw was found in pydantic-ai. The web fetching utilities fail to normalize domain names before checking them against the configured blocklist. A remote attacker capable of influencing the model output can supply alternate character encodings, case variations, or trailing labels that resolve to a blocked destination. This allows the application to bypass domain restrictions and fetch data from restricted hosts, resulting in information disclosure."], "name": "CVE-2026-107288", "package_state": [{"cpe": "cpe:/a:redhat:lightspeed_core", "fix_state": "Fix deferred", "package_name": "lightspeed-core/lightspeed-stack-rhel9", "product_name": "Lightspeed Core"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Fix deferred", "package_name": "rhelai3/bootc-cuda-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Fix deferred", "package_name": "rhelai3/bootc-gaudi-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Fix deferred", "package_name": "rhelai3/bootc-rocm-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Fix deferred", "package_name": "rhelai3/disk-image-cuda-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}], "public_date": "2026-10-08T15:18:40Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-107288\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-107288\nhttps://github.com/pydantic/pydantic-ai/commit/490335f8e2322e143a79337ddca9410e0176c812\nhttps://github.com/pydantic/pydantic-ai/commit/a9dab92099d0ef9d5d4aa34ccac8a6f1b0e51284\nhttps://github.com/pydantic/pydantic-ai/commit/c1f212a084cbfa0012f2044cdb4731d214b3b983\nhttps://github.com/pydantic/pydantic-ai/pull/8407\nhttps://github.com/pydantic/pydantic-ai/pull/8409\nhttps://github.com/pydantic/pydantic-ai/pull/8421\nhttps://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6\nhttps://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0\nhttps://github.com/pydantic/pydantic-ai/security/advisories/GHSA-22h6-qm39-v87j"], "threat_severity": "Low"}

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