CVE-2026-26210

9.8 CRITICAL
Published: April 23, 2026 Modified: May 05, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://chocapikk.com/posts/2026/ktransformers-pickle-rce/
Source: disclosure@vulncheck.com
Exploit Mitigation Third Party Advisory
https://github.com/kvcache-ai/ktransformers/pull/1944
Source: disclosure@vulncheck.com
Issue Tracking Patch

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
0.0%
13th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

kvcache-ai