HIGH
OpenClaw < 2026.3.1 - Unbounded Memory Growth in Zalo Webhook via Query String Key Churn
Published Mar 19, 2026
8.7
HIGHCVSS 4.0
EPSS 0.61%
Description
OpenClaw versions prior to 2026.3.1 contain an unbounded memory growth vulnerability in the Zalo webhook endpoint that allows unauthenticated attackers to trigger in-memory key accumulation by varying query strings. Remote attackers can exploit this by sending repeated requests with different query parameters to cause memory pressure, process instability, or out-of-memory conditions that degrade service availability.
Affected products
-
Affected
- ≥ 0, < 2026.3.1
No data.
No Red Hat product state for this CVE.
openclaw
npm
Introduced 0 Fixed 2026.3.1
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | openclaw | 0 | 2026.3.1 |
Remediation
No remediation recorded yet.
Weaknesses (1)
References (3)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-13014 Advisory
- https://github.com/openclaw/openclaw/security/advisories/GHSA-wr6m-jg37-68xh vendor-advisoryMitigationVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-unbounded-memory-growth-in-zalo-webhook-via-query-string-key-churn third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-13014 | Advisory | |
| https://github.com/openclaw/openclaw/security/advisories/GHSA-wr6m-jg37-68xh | vendor-advisoryMitigationVendor Advisory | |
| https://www.vulncheck.com/advisories/openclaw-unbounded-memory-growth-in-zalo-webhook-via-query-string-key-churn | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner VulnCheck
Published Mar 19, 2026
Updated Jun 23, 2026
Reserved Feb 27, 2026
Link CVE-2026-28461
CISA Vulnrichment
Updated Mar 19, 2026
Red Hat
No data
GitHub
No data