Internal resource disclosure via proxy validation bypass
Published Jul 10, 2026 · Updated Jul 10, 2026
Server-side request forgery in Sipeed PicoClaw 0.2.0 through 0.2.9 allows remote attackers to read internal HTTP resources via web_fetch. WebFetchTool.Execute allowlists the environment-configured proxy as the connection's first hop, so the proxy resolves and reaches a destination that the private-host guard never validates. Exploitation requires web_fetch to be enabled, tools.web.proxy to remain empty, an HTTP proxy environment variable, and attacker influence over a tool call; returned internal content can reach the model and its output.
Summary
What happened
Server-side request forgery in Sipeed PicoClaw 0.2.0 through 0.2.9 allows remote attackers to read internal HTTP resources via web_fetch. WebFetchTool.Execute allowlists the environment-configured proxy as the connection's first hop, so the proxy resolves and reaches a destination that the private-host guard never validates. Exploitation requires web_fetch to be enabled, tools.web.proxy to remain empty, an HTTP proxy environment variable, and attacker influence over a tool call; returned internal content can reach the model and its output.
The record
- CVE
- CVE-2026-15317
- Published
- Jul 10, 2026
- Updated
- Jul 10, 2026
- Vendor
- Sipeed
- Product
- PicoClaw
- Classifications
- CWE-918, CAPEC-664, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 10, 2026CVE publishedPublication date reported by the CVE source.
- Jul 10, 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=0.2.0
- Affected versionversion=0.2.1
- Affected versionversion=0.2.2
- Affected versionversion=0.2.3
- Affected versionversion=0.2.4
- Affected versionversion=0.2.5
- Affected versionversion=0.2.6
- Affected versionversion=0.2.7
- Affected versionversion=0.2.8
- Affected versionversion=0.2.9
What conditions does exploitation require?
What is affected?
Published CVSS scores
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
- Environment-proxy SSRF end-to-end PoCfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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