What is CVE-2026-6603?

CVE-2026-6603 is a high-severity vulnerability in Modelscope Agentscope, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.3/10. Published 2026-04-20.

How severe is CVE-2026-6603?

High severity. CVSS v3 base score is 7.3 out of 10.

RCE in Modelscope Agentscope

CVE-2026-6603

A vulnerability was determined in modelscope agentscope up to 1.0.18. Affected by this vulnerability is the function execute_python_code/execute_shell_command of the file src/AgentScope/tool/_coding/_python.py. This manipulation causes code injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

EPSS: 0.003 (23.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Modelscope Agentscope — versions 1.0.0, 1.0.1, 1.0.2

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-6603?: CVE-2026-6603 is a high-severity vulnerability in Modelscope Agentscope, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.3/10. Published 2026-04-20.
How severe is CVE-2026-6603?: High severity. CVSS v3 base score is 7.3 out of 10.