by Kastro
Paper/Archive/CVE-2026-77930

CVE-2026-77930

EvoScientist EvoScientist — EvoScientist 0.1.0 before 0.2.5 Human Approval Bypass via Async Sub-Agents

EPSS 0.7%public exploitCVSS 9.8
critical.is priorityof 100
50
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 52.6.526 × 2010.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
EvoScientist0.1.0 – < 0.2.50.2.5CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitlasso.security/vulnerability-database/cve-2026-77930refgithub.com/EvoScientist/EvoScientist/issues/387patchgithub.com/EvoScientist/EvoScientist/commit/d249e320bd856a7d31d859cfbb2bf75bab6c8686refgithub.com/EvoScientist/EvoScientist/releases/tag/v0.2.5writeupgithub.com/EvoScientist/EvoScientist/blob/ac58caab7bdd1706f3fee55891f611cd175d05b0/EvoScientist/subagents/_factory.py#L116writeupvulncheck.com/advisories/evoscientist-0.1.0-before-0.2.5-human-approval-bypass-via-async-sub-agents