CVE-2026-26210
9.3
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| kvcache-ai | ktransformers | 0 <= 0.5.3 | affected |
Weaknesses
- CWE-502: CWE-502 Deserialization of Untrusted Data
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: total
References
- https://chocapikk.com/posts/2026/ktransformers-pickle-rce/
- https://github.com/kvcache-ai/ktransformers/pull/1944
- https://www.vulncheck.com/advisories/ktransformers-unsafe-deserialization-rce-via-balance-serve
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