Ikaros 1.2.0 through 1.2.5 contains an authentication bypass vulnerability that allows attackers with a valid password to skip TOTP verification by reusing the login temp token. Attackers can present the temp token from the jwt/apply endpoint as a bearer JWT, refresh it, or use HTTP Basic login to gain full account access, including the master administrator.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://github.com/ikaros-dev/ikaros/blob/v1.2.5/server/src/main/java/run/ikaro…
disclosure@vulncheck.com
https://github.com/ikaros-dev/ikaros/blob/v1.2.5/server/src/main/java/run/ikaro…
disclosure@vulncheck.com
https://github.com/ikaros-dev/ikaros/blob/v1.2.5/server/src/main/java/run/ikaro…
disclosure@vulncheck.com
https://github.com/ikaros-dev/ikaros/releases/tag/v1.2.5
disclosure@vulncheck.com
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ikaros-2fa-bypass-temp-token
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/ikaros-1.2.0-through-1.2.5-totp-authentica…
disclosure@vulncheck.com
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/cve-2026-110097-ikaros-2fa-bypass-tem…
134c704f-9b21-4f2e-91b3-4a467353bcc0