# CVE-2026-29609

## Summary

- **CVE ID:** CVE-2026-29609
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-770
- **Published:** Mar 5, 2026
- **Last Modified:** Mar 16, 2026

## 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.

## Affected Products

- OpenClaw — OpenClaw (0)

## References

- [CNA](https://github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgc)
- [CNA](https://github.com/openclaw/openclaw/commit/00a08908892d1743d1fc52e5cbd9499dd5da2fe0)
- [CNA](https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-url-backed-media-fetch)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 35.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._