CVE-2026-63767

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Source
https://cve.org/CVERecord?id=CVE-2026-63767
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63767.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63767
Published
2026-07-20T19:13:43.160Z
Modified
2026-07-23T03:56:34.605380625Z
Severity
  • 9.3 (Critical) CVSS_V4 - 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 CVSS Calculator
Summary
ktransformers Unauthenticated Pickle Deserialization RCE via ZMQ
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-502"
    ],
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63767.json"
}
References

Affected packages

Git / github.com/kvcache-ai/ktransformers

Affected ranges

Type
GIT
Repo
https://github.com/kvcache-ai/ktransformers
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ce7c3ddbe93f7ac1f992375eed54058bbc512646
Fixed
def0f9313d6e063b5c5ccdfa1f6707f7a40dfdca
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.6.3"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.2.0
v0.2.1
v0.2.1.post1
v0.2.2
v0.2.2rc1
v0.2.3
v0.2.3post1
v0.2.3post2
v0.2.4
v0.2.4post1
v0.3
v0.3.1
v0.3.2
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.5.0
v0.5.0.post1
v0.5.1
v0.5.2.post1
v0.5.3
v0.6.1
v0.6.1.post1
v0.6.2
v0.6.2.post1
v0.6.2.post2
v0.6.2.post3
v0.6.3
v0.6.3.post1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63767.json"