Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-63767 |
| Alert Source | GitHub Advisory - Critical Vulnerability |
| CVE Publication Year | 2026 |
| Date Published | 2026-07-20 |
| Vendor | kvcache-ai |
| Product | ktransformers |
| CVSS Score | 9.8 (critical) |
| EPSS Score | No data |
| CISA KEV | No |
| Ransomware | Not confirmed |
Vulnerability Description
ktransformers through 0.6.3, fixed in commit def0f93, contains an unauthenticated pickle deserialization vulnerability that allows remote attackers to execute arbitrary commands by sending crafted pickle payloads to the SchedulerServer ZMQ ROUTER socket bound to all interfaces. Attackers can exploit malicious reduce methods embedded in crafted pickle payloads to execute arbitrary shell commands as the server process.
Required Actions
Apply vendor patches or mitigations as soon as available.
Who Is Affected?
This vulnerability affects ktransformers by kvcache-ai. Check whether your organization uses this software and whether it requires an update.
Sources
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