Description
KTransformers through 0.5.3 contains an unsafe deserialization vulnerability in the balance_serve backend mode where the scheduler RPC server binds a ZMQ ROUTER socket to all interfaces with no authentication and deserializes incoming messages using pickle.loads() without validation. Attackers can send a crafted pickle payload to the exposed ZMQ socket to execute arbitrary code on the server with the privileges of the ktransformers process.
Published: 2026-04-23
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 05 May 2026 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:kvcache-ai:ktransformers:*:*:*:*:*:*:*:*

Tue, 28 Apr 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Kvcache-ai
Kvcache-ai ktransformers
Vendors & Products Kvcache-ai
Kvcache-ai ktransformers

Fri, 24 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 23 Apr 2026 21:45:00 +0000

Type Values Removed Values Added
Description KTransformers through 0.5.3 contains an unsafe deserialization vulnerability in the balance_serve backend mode where the scheduler RPC server binds a ZMQ ROUTER socket to all interfaces with no authentication and deserializes incoming messages using pickle.loads() without validation. Attackers can send a crafted pickle payload to the exposed ZMQ socket to execute arbitrary code on the server with the privileges of the ktransformers process.
Title KTransformers Unsafe Deserialization RCE via balance_serve
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Kvcache-ai Ktransformers
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-24T14:03:42.911Z

Reserved: 2026-02-11T20:08:07.941Z

Link: CVE-2026-26210

cve-icon Vulnrichment

Updated: 2026-04-24T14:03:26.481Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-23T22:16:26.400

Modified: 2026-05-05T14:43:28.873

Link: CVE-2026-26210

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T20:30:06Z

Weaknesses