CVE-2026-88939: falha de alta gravidade em knowns-dev knowns
knowns through 0.33.0 Authorization Bypass via project.set Bootstrap Exemption
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Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.7epss 0.5%
knowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions. Attackers can invoke project.set to repoint the server at another project directory and obtain write access capabilities.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
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Referências
https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/guard.go#L104-L113https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/registry.go#L51-L54https://github.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvghttps://www.vulncheck.com/advisories/knowns-through-0.33.0-authorization-bypass-via-project-set-bootstrap-exemption