CVE-2026-77930: critical vulnerability in EvoScientist
EvoScientist 0.1.0 before 0.2.5 Human Approval Bypass via Async Sub-Agents
Published · Updated
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48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.7%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
EvoScientist · EvoScientistpublic PoCs found — 1
cve_referencewww.lasso.security/vulnerability-database/cve-2026-77930unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/EvoScientist/EvoScientist/blob/ac58caab7bdd1706f3fee55891f611cd175d05b0/EvoScientist/subagents/_factory.py#L116https://github.com/EvoScientist/EvoScientist/commit/d249e320bd856a7d31d859cfbb2bf75bab6c8686https://github.com/EvoScientist/EvoScientist/issues/387https://github.com/EvoScientist/EvoScientist/releases/tag/v0.2.5https://www.lasso.security/vulnerability-database/cve-2026-77930https://www.vulncheck.com/advisories/evoscientist-0.1.0-before-0.2.5-human-approval-bypass-via-async-sub-agents