Auth bypass in Ikaros-Dev Ikaros
CVE-2026-110097
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.
Vulnerability class: Broken Authentication
Published .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ikaros-2fa-bypass-temp-token (third-party-advisory)
- github.com/ikaros-dev/ikaros/blob/v1.2.5/server/src/main/java/run/ikaros/server… (technical-description)
- github.com/ikaros-dev/ikaros/blob/v1.2.5/server/src/main/java/run/ikaros/server… (technical-description)
- github.com/ikaros-dev/ikaros/blob/v1.2.5/server/src/main/java/run/ikaros/server… (technical-description)
- github.com/ikaros-dev/ikaros/releases/tag/v1.2.5 (release-notes)
- www.vulncheck.com/advisories/ikaros-1.2.0-through-1.2.5-totp-authentication-byp… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110097?
- CVE-2026-110097 is a high-severity vulnerability in Ikaros-Dev Ikaros, classified under Improper Authentication. CVSS score: 8.1/10. Published 2026-10-13.
- How severe is CVE-2026-110097?
- High severity. CVSS v3 base score is 8.1 out of 10.