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CVE-2026-35640
5.3 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): Low (L)
Activity log
- Created suggestion
OpenClaw < 2026.3.25 - Denial of Service via Unauthenticated Webhook Request Parsing
OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through forced JSON parsing before signature rejection.
References
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GitHub Security Advisory (GHSA-3h52-cx59-c456) third-party-advisory
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Patch Commit patch
Affected products
OpenClaw
- ==2026.3.25
- <2026.3.25
Package maintainers
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@mkg20001 Maciej Krüger <mkg20001+nix@gmail.com>
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@chrisportela Chris Portela <chris@chrisportela.com>