https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-10T03:12:25.412184+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/brew-oterm-cve-2026-107289 BREW-oterm-CVE-2026-107289 — Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv6 zone identifiers 2026-10-10T03:12:25.413824+00:00

Affected: Homebrew: oterm

### Summary

When an application using Pydantic AI opts a URL into local network access — either a `FileUrl` with `force_download='allow-local'`, or `web_fetch_tool(allow_local_urls=True)` — the cloud-metadata blocklist could be bypassed by appending an IPv6 zone identifier to a metadata address (for example `fd00:ec2::254%251`). The host ignores the zone identifier on a destination that is not link-local and delivers the request to the metadata endpoint anyway, exposing cloud IAM short-term credentials.

This is an incomplete fix of [GHSA-cqp8-fcvh-x7r3](https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-cqp8-fcvh-x7r3) / [CVE-2026-46678](https://nvd.nist.gov/vuln/detail/CVE-2026-46678) and [GHSA-cg7w-rg45-pc59](https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-cg7w-rg45-pc59) / [CVE-2026-48782](https://nvd.nist.gov/vuln/detail/CVE-2026-48782), themselves follow-ups to [CVE-2026-25580](https://nvd.nist.gov/vuln/detail/CVE-2026-25580). The parent advisory's remediation guaranteed that cloud metadata endpoints are always blocked, even with local access allowed. That guarantee did not hold for zone-scoped spellings of the IPv6 metadata endpoints.

### Details

The cloud-metadata guard compared IPv6 addresses against its blocklist by set membership. Python includes the zone identifier in `IPv6Address` equality and hashing, so a zone-scoped spelling of a blocked address did not match, while the network stack ignores the zone identifier for a destina…

 https://cve.radiocsirt.org/vuln/cve-2026-107289 CVE-2026-107289 — Pydantic AI: SSRF cloud-metadata blocklist bypass via IPv6 zone identifier (incomplete fix for CVE-2026-46678 and CVE-2… 2026-10-10T03:12:25.413905+00:00

Affected: pydantic-ai, pydantic-ai-slim

Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.56.0 until 1.107.6 and 2.44.0, applications that opt attacker-influenced URLs into local network access through FileUrl with force_download='allow-local' or web_fetch_tool with allow_local_urls=True can bypass the cloud-metadata blocklist by appending an IPv6 zone identifier to an IPv6 metadata address. IPv6Address equality and hashing include the zone identifier, so the blocklist comparison fails even though the network stack ignores the zone on a non-link-local destination and reaches the metadata service, potentially exposing cloud IAM credentials. The opt-in settings are disabled by default, and the issue requires an IPv6-enabled environment. This issue is fixed in versions 1.107.6 and 2.44.0.