holaOS through 2026.822.1 contains an authorization bypass vulnerability in the channel-gateway Telegram connector that authorizes senders by mutable username rather than only numeric id. Attackers who register a released username listed in allowFrom can submit turns to the bound workspace agent, which runs configured tools on the operator's machine.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
holaboss-ai:holaos
References 4
https://github.com/holaboss-ai/holaOS
disclosure@vulncheck.com
https://github.com/holaboss-ai/holaOS/blob/4684714ee133794cdbb86630e42b7d93447f…
disclosure@vulncheck.com
https://hackmd.io/@hieuPenguinnn/holaos-channel-gateway-allow-all-sender-default
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/holaos-through-2026.822.1-authorization-by…
disclosure@vulncheck.com