SSRF in Openclaw
CVE-2026-28451
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (29.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-x22m-j5qq-j49m (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/5b4121d6011a48c71e747e3c18197f180b872c5d (Patch, patch)
- www.vulncheck.com/advisories/openclaw-ssrf-via-feishu-extension-media-fetching (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28451?
- CVE-2026-28451 is a high-severity vulnerability in Openclaw, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.3/10. Published 2026-03-05.
- How severe is CVE-2026-28451?
- High severity. CVSS v3 base score is 8.3 out of 10.