High severityNVD Advisory· Published Mar 5, 2026· Updated Mar 9, 2026
OpenClaw < 2026.2.14 - Denial of Service via Unbounded URL-backed Media Fetch
CVE-2026-29609
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openclawnpm | < 2026.2.14 | 2026.2.14 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/openclaw/openclaw/commit/00a08908892d1743d1fc52e5cbd9499dd5da2fe0ghsapatchWEB
- github.com/advisories/GHSA-j27p-hq53-9wgcghsaADVISORY
- github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgcghsavendor-advisoryWEB
- www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-url-backed-media-fetchmitrethird-party-advisory
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