High severity7.5NVD Advisory· Published Mar 5, 2026· Updated Jun 17, 2026
CVE-2026-28478
CVE-2026-28478
Description
OpenClaw versions prior to 2026.2.13 contain a denial of service vulnerability in webhook handlers that buffer request bodies without strict byte or time limits. Remote unauthenticated attackers can send oversized JSON payloads or slow uploads to webhook endpoints causing memory pressure and availability degradation.
AI Insight
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 | < 2026.2.13 | 2026.2.13 |
clawdbotnpm | <= 2026.1.24-3 | — |
Affected products
4- ghsa-coords2 versions
<= 2026.1.24-3+ 1 more
- (no CPE)range: <= 2026.1.24-3
- (no CPE)range: < 2026.2.13
Patches
Vulnerability mechanics
References
4- github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930nvdPatch
- github.com/advisories/GHSA-q447-rj3r-2cghghsaADVISORY
- github.com/openclaw/openclaw/security/advisories/GHSA-q447-rj3r-2cghnvdVendor AdvisoryWEB
- www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-webhook-request-body-bufferingnvdThird Party Advisory
News mentions
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