Openclaw
CVE-2026-28451
HIGH
GHSA-x22m-j5qq-j49m
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessCraft malicious prompt injection
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ExploitTrigger sendMediaFeishu function
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ExecutionFetch internal service URLs
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ImpactRe-upload responses as Feishu media
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | OpenClaw versions prior to 2026.2.14 with Feishu extension enabled and no SSRF protections configured. Attacker can directly manipulate tool calls or inject prompts without authentication against default deployments. |
| Impact | CVSS 8.3 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker could exploit this vulnerability to fetch attacker-controlled remote URLs without SSRF protections via sendMediaFeis. |
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Alert meAnalysisAIv1 – Mar 12, 2026
OpenClaw versions before 2026.2.14 contain unprotected server-side request forgery flaws in the Feishu extension that enable remote attackers to access internal services and exfiltrate data without authentication. Attackers can exploit the sendMediaFeishu function and markdown image processing through direct manipulation or prompt injection to force the application to fetch attacker-controlled URLs and re-upload responses as Feishu media. A patch is available to remediate this network-accessible vulnerability affecting AI/ML deployments.
Earlier versions of this analysis (1)
OpenClaw versions prior to 2026.2.14 contain server-side request forgery vulnerabilities in the Feishu extension that allow attackers to fetch attacker-controlled remote URLs without SSRF protections via sendMediaFeishu function and markdown image processing. [CVSS 8.3 HIGH]
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in npm
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-918 (Server-Side Request Forgery (SSRF)). Affects the sendMediaFeishu component of Openclaw. OpenClaw versions prior to 2026.2.14 contain server-side request forgery vulnerabilities in the Feishu extension that allow attackers to fetch attacker-controlled remote URLs without SSRF protections via sendMediaFeishu function and markdown image processing. Attackers can influence tool calls through direct manipulation or prompt injection to trigger requests to internal services and re-upload responses as Feishu media.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
OpenClaw versions prior to 2026.2.14 contain server-side request forgery vulnerabilities in the Feishu extension that allow attackers to fetch attacker-controlled remote URLs without SSRF protections via sendMediaFeishu function and markdown image processing. Attackers can influence tool calls through direct manipulation or prompt injection to trigger requests to internal services and re-upload responses as Feishu media.
Executive ViewAI
OpenClaw versions before 2026.2.14 contain server-side request forgery vulnerabilities in the Feishu extension that could allow attackers to access internal systems and sensitive data. Organizations using affected versions should prioritize patching immediately to prevent potential data exfiltration and lateral movement attacks.
Apply vendor patch.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.
Affected Products (CPE)CVE.org
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Exploit-DB