# Pydantic vulnerabilities Source: https://junglewise.ai/threats/vendors/pydantic Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/vendors/pydantic.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 17 vulnerabilities in Pydantic: 0 in the last 7 days and 11 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-114386, was published on 21 October 2026. 1 vulnerability in the last four weeks, down 89% on the four before (9). 3 technologies have a page of their own. ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 11 - All time: 17 (0 critical, 0 exploited in the wild) ## About Pydantic Pydantic is a data validation and settings management library for Python based on type hints. ## Latest Pydantic vulnerabilities - [CVE-2026-114386: Pydantic AI Harness UsageLimits.tool_calls_limit enforcement bypass in CodeMode](https://junglewise.ai/threats/cve-2026-114386-pydantic-ai-harness-before-0-59-0-fails-to-enforce-usagelimits) (medium, CVSS 4.8, published 21 Oct 2026) - [CVE-2026-107286: Pydantic AI concurrency slot leak in streamed requests](https://junglewise.ai/threats/cve-2026-107286-pydantic-ai-concurrency-limited-models-can-keep-their-slot-when) (high, CVSS 7.5, published 8 Oct 2026) - [CVE-2026-107287: Pydantic AI excessive resource consumption in HTML-to-Markdown conversion](https://junglewise.ai/threats/cve-2026-107287-pydantic-ai-excessive-resource-use-when-local-web-fetching) (medium, CVSS 6.5, published 8 Oct 2026) - [CVE-2026-107292: Pydantic AI web chat UI Host header validation bypass](https://junglewise.ai/threats/cve-2026-107292-pydantic-ai-web-chat-ui-agent-to-web-clai-web-the-local-chat) (medium, CVSS 6.4, published 8 Oct 2026) - [CVE-2026-107295: Pydantic AI missing content-type validation in chat endpoint](https://junglewise.ai/threats/cve-2026-107295-pydantic-ai-web-chat-ui-agent-to-web-clai-web-a-website-visited) (high, CVSS 7.6, published 8 Oct 2026) - [CVE-2026-107293: Pydantic AI OpenTelemetry instrumentation: retry prompt content is not redacted when `include_content=False`](https://junglewise.ai/threats/cve-2026-107293-pydantic-ai-opentelemetry-instrumentation-retry-prompt-content) (medium, CVSS 4, published 8 Oct 2026) - [CVE-2026-107294: Pydantic AI unbounded memory use in remote content download](https://junglewise.ai/threats/cve-2026-107294-pydantic-ai-unbounded-memory-use-when-downloading-remote-content) (medium, CVSS 6.5, published 8 Oct 2026) - [CVE-2026-107290: Pydantic AI event loop blocking in web_fetch title extraction](https://junglewise.ai/threats/cve-2026-107290-pydantic-ai-event-loop-blocked-by-quadratic-title-extraction-in) (medium, CVSS 6.5, published 8 Oct 2026) - [CVE-2026-107291: Pydantic AI OpenTelemetry instrumentation content disclosure with include_content=False](https://junglewise.ai/threats/cve-2026-107291-pydantic-ai-opentelemetry-instrumentation-exception-events-on) (medium, CVSS 4, published 8 Oct 2026) - [CVE-2026-107289: Pydantic AI SSRF in cloud-metadata blocklist bypass via IPv6 zone identifiers](https://junglewise.ai/threats/cve-2026-107289-pydantic-ai-ssrf-cloud-metadata-blocklist-bypass-via-ipv6-zone) (medium, CVSS 6.8, published 8 Oct 2026) - [CVE-2026-84381: HTTPX2 secure WebSocket plaintext transmission via SOCKS proxy](https://junglewise.ai/threats/cve-2026-84381-httpx2-secure-websocket-plaintext-transmission-via-socks-proxy) (high, CVSS 8.1, published 2 Sep 2026) - [CVE-2026-65975: Pydantic AI incorrect authorization in UI adapter message sanitization](https://junglewise.ai/threats/cve-2026-65975-pydantic-ai-incorrect-authorization-in-ui-adapter-message) (medium, CVSS 6.5, published 29 Jul 2026) - [CVE-2026-54249: Pydantic AI SSRF in UI adapters via UploadedFile references](https://junglewise.ai/threats/cve-2026-54249-pydantic-ai-ssrf-in-ui-adapters-via-uploadedfile-references) (medium, CVSS 6.8, published 29 Jul 2026) - [CVE-2026-46678: Pydantic Pydantic AI SSRF bypass in cloud-metadata blocklist](https://junglewise.ai/threats/cve-2026-46678-pydantic-pydantic-ai-ssrf-bypass-in-cloud-metadata-blocklist) (medium, CVSS 6.8, published 29 Jul 2026) - [CVE-2026-48782: Pydantic AI SSRF via IPv6 transition form blocklist bypass](https://junglewise.ai/threats/cve-2026-48782-pydantic-ai-ssrf-via-ipv6-transition-form-blocklist-bypass) (medium, CVSS 6.8, published 17 Jun 2026) - [CVE-2026-25580: Pydantic Pydantic AI SSRF in URL download functionality](https://junglewise.ai/threats/cve-2026-25580-pydantic-pydantic-ai-ssrf-in-url-download-functionality) (high, CVSS 8.6, published 6 Feb 2026) - [CVE-2026-25640: Pydantic AI path traversal and XSS in web UI](https://junglewise.ai/threats/cve-2026-25640-pydantic-ai-path-traversal-and-xss-in-web-ui) (high, CVSS 7.1, published 6 Feb 2026) ## Most severe Pydantic vulnerabilities - [CVE-2026-25580: Pydantic Pydantic AI SSRF in URL download functionality](https://junglewise.ai/threats/cve-2026-25580-pydantic-pydantic-ai-ssrf-in-url-download-functionality) (high, CVSS 8.6, published 6 Feb 2026) - [CVE-2026-84381: HTTPX2 secure WebSocket plaintext transmission via SOCKS proxy](https://junglewise.ai/threats/cve-2026-84381-httpx2-secure-websocket-plaintext-transmission-via-socks-proxy) (high, CVSS 8.1, published 2 Sep 2026) - [CVE-2026-107295: Pydantic AI missing content-type validation in chat endpoint](https://junglewise.ai/threats/cve-2026-107295-pydantic-ai-web-chat-ui-agent-to-web-clai-web-a-website-visited) (high, CVSS 7.6, published 8 Oct 2026) - [CVE-2026-107286: Pydantic AI concurrency slot leak in streamed requests](https://junglewise.ai/threats/cve-2026-107286-pydantic-ai-concurrency-limited-models-can-keep-their-slot-when) (high, CVSS 7.5, published 8 Oct 2026) - [CVE-2026-25640: Pydantic AI path traversal and XSS in web UI](https://junglewise.ai/threats/cve-2026-25640-pydantic-ai-path-traversal-and-xss-in-web-ui) (high, CVSS 7.1, published 6 Feb 2026) - [CVE-2026-48782: Pydantic AI SSRF via IPv6 transition form blocklist bypass](https://junglewise.ai/threats/cve-2026-48782-pydantic-ai-ssrf-via-ipv6-transition-form-blocklist-bypass) (medium, CVSS 6.8, published 17 Jun 2026) - [CVE-2026-46678: Pydantic Pydantic AI SSRF bypass in cloud-metadata blocklist](https://junglewise.ai/threats/cve-2026-46678-pydantic-pydantic-ai-ssrf-bypass-in-cloud-metadata-blocklist) (medium, CVSS 6.8, published 29 Jul 2026) - [CVE-2026-107289: Pydantic AI SSRF in cloud-metadata blocklist bypass via IPv6 zone identifiers](https://junglewise.ai/threats/cve-2026-107289-pydantic-ai-ssrf-cloud-metadata-blocklist-bypass-via-ipv6-zone) (medium, CVSS 6.8, published 8 Oct 2026) - [CVE-2026-54249: Pydantic AI SSRF in UI adapters via UploadedFile references](https://junglewise.ai/threats/cve-2026-54249-pydantic-ai-ssrf-in-ui-adapters-via-uploadedfile-references) (medium, CVSS 6.8, published 29 Jul 2026) - [CVE-2026-107294: Pydantic AI unbounded memory use in remote content download](https://junglewise.ai/threats/cve-2026-107294-pydantic-ai-unbounded-memory-use-when-downloading-remote-content) (medium, CVSS 6.5, published 8 Oct 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, down 89% on the four before (9). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 1 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 9 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 1 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Pydantic technologies - [Pydantic AI Slim](https://junglewise.ai/threats/technologies/ai-slim): 11 vulnerabilities - [PydanticAI](https://junglewise.ai/threats/technologies/pydanticai): 11 vulnerabilities - [Pydantic AI](https://junglewise.ai/threats/technologies/pydantic-pydantic-ai): 9 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Pydantic vulnerabilities", https://junglewise.ai/threats/vendors/pydantic, 9 November 2026.