What’s Vulnerable › Vulnerabilities

CVE-2026-35635: OpenClaw < 2026.3.22 - Webhook Path Route Replacement Vulnerability in Synology Chat

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-09 · updated 2026-06-17
• Weakness: CWE-706

Description

OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.

Affected products

• OpenClaw: before 2026.3.22 — fixed in 2026.3.22

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.22. Check the vendor advisory for mitigations.

References

• https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
• https://github.com/openclaw/openclaw/commit/980940aa58f862da4e19372597bbc2a9f268d70b
• https://github.com/openclaw/openclaw/security/advisories/GHSA-rqp8-q22p-5j9q
• https://www.vulncheck.com/advisories/openclaw-webhook-path-route-replacement-vulnerability-in-synology-chat

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