# Pydantic AI vulnerabilities

Source: https://junglewise.ai/threats/technologies/pydantic-pydantic-ai  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/pydantic-pydantic-ai.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 9 vulnerabilities in Pydantic AI: 0 in the last 7 days and 9 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-107286, was published on 8 October 2026. Nothing in the last four weeks, down from 9 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 9
- All time: 9 (0 critical, 0 exploited in the wild)

## About Pydantic AI

Python library for building AI agents with type-safe tool calling and structured outputs.

## Latest Pydantic AI vulnerabilities

- [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)

## Most severe Pydantic AI vulnerabilities

- [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-2026-107289: 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-2026-107294: 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-2026-107287: 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-2026-107291: 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-2026-107293: 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)

## Vulnerabilities per week

Nothing in the last four weeks, down from 9 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 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 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Pydantic technologies

- [Pydantic AI Slim](https://junglewise.ai/threats/technologies/ai-slim): 11 vulnerabilities
- [PydanticAI](https://junglewise.ai/threats/technologies/pydanticai): 11 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 AI vulnerabilities", https://junglewise.ai/threats/technologies/pydantic-pydantic-ai, 9 November 2026.