CVE-2026-29609
HIGHOpenClaw < 2026.2.14 - Denial of Service via Unbounded URL-Backed Media Fetch
Title source: llmDescription
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.
References (3)
Core 3
Core References
Vendor Advisory vendor-advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgc
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-url-backed-media-fetch
Scores
CVSS v3
7.5
EPSS
0.0043
EPSS Percentile
33.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (1)
openclaw/openclaw
< 2026.2.14
Published
Mar 05, 2026
Tracked Since
Mar 06, 2026