Detections
Analytics

SCA: security update for pydantic-ai, pydantic-ai-slim (GHSA-fpf4-vwcp-v4hp)

medium Tenable Cloud Security Plugin ID 473893

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From
 1.77.0 until 1.107.6 and 2.44.0, the local web_fetch_tool and the WebFetch local fallback process server-
 controlled responses with quadratic title extraction, whitespace normalization, and ordered-list
 numbering. An attacker-controlled page of modest size can therefore block the event loop for an extended
 period, stalling other agent runs and requests, while unsupported codecs or excessive HTML or JSON nesting
 can abort an individual run. This issue is fixed in versions 1.107.6 and 2.44.0. (CVE-2026-107290)

Solution

Update the pydantic-ai library and its related packages to version 1.107.6 or later.

See Also

https://github.com/advisories/GHSA-fpf4-vwcp-v4hp

Plugin Details

Severity: Medium

ID: 473893

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-107290

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 10/8/2026

Reference Information

CVE: CVE-2026-107290