Vulnerability Details CVE-2026-29609
OpenClaw versions prior to 2026.2.14 contain a denial of service vulnerability in the fetchWithGuard function that allocates entire response payloads in memory before enforcing maxBytes limits. Remote attackers can trigger memory exhaustion by serving oversized responses without content-length headers to cause availability loss.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 27.6%
CVSS Severity
CVSS v3 Score 7.5
References
- https://github.com/openclaw/openclaw/commit/00a08908892d1743d1fc52e5cbd9499dd5da2fe0
- https://github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgc
- https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-url-backed-media-fetch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgc