Internal HTTP response disclosure via audit-only URL filter
Published Aug 6, 2026 · Updated Aug 6, 2026
SSRF in Super Agent Party 0.4.0 and 0.4.1 allows remote attackers to read internal HTTP responses through the extension proxy. The sanitize_proxy_url function in server.py detects private or loopback hosts but only logs a warning, after which the extension_proxy route passes the URL to httpx and relays the response. Any unauthenticated caller able to reach the route can query localhost or private-network HTTP services and receive their response bodies.
Summary
What happened
SSRF in Super Agent Party 0.4.0 and 0.4.1 allows remote attackers to read internal HTTP responses through the extension proxy. The sanitize_proxy_url function in server.py detects private or loopback hosts but only logs a warning, after which the extension_proxy route passes the URL to httpx and relays the response. Any unauthenticated caller able to reach the route can query localhost or private-network HTTP services and receive their response bodies.
The record
- CVE
- CVE-2026-18973
- Published
- Aug 6, 2026
- Updated
- Aug 6, 2026
- Vendor
- heshengtao
- Product
- Super Agent Party
- Classifications
- CWE-918, CAPEC-664, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 6, 2026CVE publishedPublication date reported by the CVE source.
- Aug 6, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.4.0
- Affected versionversion=0.4.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Super Agent Party extension_proxy SSRF proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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