Internal resource access via unguarded Zalo photo URLs
Published May 6, 2026 · Updated May 6, 2026
Server-side request forgery in OpenClaw before 2026.4.22 allows remote attackers to access internal resources through Zalo photo URLs. The Zalo plugin's sendPhoto function forwards an attacker-controlled photo URL to the Zalo Bot API without applying the shared SSRF hostname policy. Exploitation requires a reachable Zalo media-send path and causes Zalo to resolve the supplied URL, exposing resources reachable from Zalo rather than directly altering the OpenClaw host.
Summary
What happened
Server-side request forgery in OpenClaw before 2026.4.22 allows remote attackers to access internal resources through Zalo photo URLs. The Zalo plugin's sendPhoto function forwards an attacker-controlled photo URL to the Zalo Bot API without applying the shared SSRF hostname policy. Exploitation requires a reachable Zalo media-send path and causes Zalo to resolve the supplied URL, exposing resources reachable from Zalo rather than directly altering the OpenClaw host.
The record
- CVE
- CVE-2026-44116
- Published
- May 6, 2026
- Updated
- May 6, 2026
- Vendor
- OpenClaw Foundation
- Product
- OpenClaw
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 6, 2026CVE publishedPublication date reported by the CVE source.
- May 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?
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- Affected versionversion=0 <2026.4.22
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
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Your stack
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