SSRF via fail-open FileResolver URL fetching
Published Sep 16, 2026 · Updated Sep 16, 2026
SSRF in A2UI FileResolver 0.10.7 and earlier allows remote attackers to make the agent host fetch attacker-chosen HTTP or HTTPS URLs. With allowed_hosts unset by default, _resolve_bytes_internal passes a client-controlled fileId to httpx and follows redirects before enforcing any destination policy. A reachable integration that accepts attacker-controlled file identifiers is required; requests can reach private or metadata endpoints, and returned text can flow into the summarizer.
Summary
What happened
SSRF in A2UI FileResolver 0.10.7 and earlier allows remote attackers to make the agent host fetch attacker-chosen HTTP or HTTPS URLs. With allowed_hosts unset by default, _resolve_bytes_internal passes a client-controlled fileId to httpx and follows redirects before enforcing any destination policy. A reachable integration that accepts attacker-controlled file identifiers is required; requests can reach private or metadata endpoints, and returned text can flow into the summarizer.
The record
- CVE
- CVE-2026-92215
- Published
- Sep 16, 2026
- Updated
- Sep 16, 2026
- Vendor
- A2UI Project
- Product
- A2UI
- Classifications
- CWE-918, CWE-1188, T1190
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 16, 2026CVE publishedPublication date reported by the CVE source.
- Sep 16, 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=0.10.0
- Affected versionversion=0.10.1
- Affected versionversion=0.10.2
- Affected versionversion=0.10.3
- Affected versionversion=0.10.4
- Affected versionversion=0.10.5
- Affected versionversion=0.10.6
- Affected versionversion=0.10.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
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
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Technologies
Your stack
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Your stack
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