CVE-2026-77930

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.

References

• 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