CVE-2026-28461 identifies an unbounded memory growth vulnerability in the Zalo webhook endpoint of OpenClaw versions prior to 2026.3.1. This high-severity flaw (CVSS 7.5) allows unauthenticated remote attackers to trigger in-memory key accumulation by varying query strings. Exploitation can lead to significant service availability degradation, process instability, and out-of-memory conditions. Currently, there is no evidence of active exploitation, nor are public exploit tools or significant community discussion available for this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0, < 2026.3.1CPE match | cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* | ||
< 2026.3.1CPE matchmatch criteria | cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.