Private-network access via permissive browser SSRF policy
Published Sep 14, 2026 · Updated Sep 14, 2026
SSRF in LobsterAI 2026.6.15, 2026.8.28, 2026.9.3, and 2026.9.4 allows attackers to read private-network services via browser actions. OpenClawConfigSync.buildBrowserConfig serializes every non-Strict mode as dangerouslyAllowPrivateNetwork=true while browser calls use the host network. Reachability requires an attacker-influenced local prompt, shared instruction, or enabled IM channel; exposed data depends on services reachable from the host.
Summary
What happened
SSRF in LobsterAI 2026.6.15, 2026.8.28, 2026.9.3, and 2026.9.4 allows attackers to read private-network services via browser actions. OpenClawConfigSync.buildBrowserConfig serializes every non-Strict mode as dangerouslyAllowPrivateNetwork=true while browser calls use the host network. Reachability requires an attacker-influenced local prompt, shared instruction, or enabled IM channel; exposed data depends on services reachable from the host.
The record
- CVE
- CVE-2026-90818
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Youdao
- Product
- LobsterAI
- Classifications
- CWE-918, CAPEC-664
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 14, 2026CVE publishedPublication date reported by the CVE source.
- Sep 14, 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=2026.6.15
- Affected versionversion=2026.8.28
- Affected versionversion=2026.9.3
- Affected versionversion=2026.9.4
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
- OpenClaw configuration-sync verification harnessproof of concept · 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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