CVE-2026-77930
EvoScientist 0.1.0 before 0.2.5 Human Approval Bypass via Async Sub-Agents
- State
- Published
- Severity
- 9.3 Critical
- Published
- Oct 20, 2026
- Updated
- Oct 22, 2026
- Reserved
- Aug 21, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
EvoScientistEvoScientist |
|
References
- Lasso.security Advisorytechnical-descriptionexploit
- https://github.com/EvoScientist/EvoScientist/issues/387issue-tracking
- https://github.com/EvoScientist/EvoScientist/commit/d249e320bd856a7d31d859cfbb2bf75bab6c8686patch
- EvoScientist v0.2.5 Release Notesrelease-notes
- https://github.com/EvoScientist/EvoScientist/blob/ac58caab7bdd1706f3fee55891f611cd175d05b0/EvoScientist/subagents/_factory.py#L116technical-description
- VulnCheck Advisory: EvoScientist 0.1.0 before 0.2.5 Human Approval Bypass via Async Sub-Agentsthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.