CVE-2026-77930

EvoScientist 0.1.0 before 0.2.5 contains an approval bypass vulnerability that allows attackers to run host shell commands by delegating them to async sub-agents lacking an interrupt_on gate. Attackers can plant instructions in ingested content such as fetched web pages, so the agent calls start_async_task and runs commands with user privileges and environment secrets.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/EvoScientist/EvoScientist/blob/ac58caab7bdd1706f3fee55891f611cd175d05b0/EvoScientist/subagents/_factory.py#L116
https://github.com/EvoScientist/EvoScientist/commit/d249e320bd856a7d31d859cfbb2bf75bab6c8686
https://github.com/EvoScientist/EvoScientist/issues/387
https://github.com/EvoScientist/EvoScientist/releases/tag/v0.2.5
https://www.lasso.security/vulnerability-database/cve-2026-77930
https://www.vulncheck.com/advisories/evoscientist-0.1.0-before-0.2.5-human-approval-bypass-via-async-sub-agents

Configurations

No configuration.

History

22 Oct 2026, 22:18

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~8.8~~	v2 : unknown v3 : 9.8

20 Oct 2026, 01:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 01:17

Updated : 2026-10-22 22:18

NVD link : CVE-2026-77930

Mitre link : CVE-2026-77930

CVE.ORG link : CVE-2026-77930

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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