CVE-2026-25904Disclosure

LOWCVSS 5.8 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The Pydantic-AI MCP Run Python tool configures the Deno sandbox with an overly permissive configuration that allows the underlying Python code to access the localhost interface of the host to perform SSRF attacks. Note - the "mcp-run-python" project is archived and unlikely to receive a fix.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-02-09: 2Technical Details · 2026-02-09: 202-09
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-25904 The Pydantic-AI MCP Run Python tool configures the Deno sandbox with an overly permissive configuration that allows the underlying Python code to access the localhost… https://www.cve.org/CVERecord?id=CVE-2026-25904

    Post summary

    CVE-2026-25904 discloses a misconfiguration in Pydantic-AI MCP Run Python that permits local access via an overly permissive Deno sandbox.

    00010341
    56.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-25904 Localhost SSRF Vulnerability in Pydantic-AI MCP Run Python Sandbox https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-25904

    Post summary

    The text announces CVE-2026-25904 as a localhost SSRF vulnerability in Pydantic‑AI MCP Run Python Sandbox, linking to additional details but providing no exploit, patch, or active exploitation information.

    0000042
    4.0K followersView on X

Explore more