VULNERABILITY INTELLIGENCE
CVE-2023-26451
CVSS score7.5 HIGH
EPSS probability1.19%
CISA KEVNot currently listed
Published2023-08-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
Functions with insufficient randomness were used to generate authorization tokens of the integrated oAuth Authorization Service. Authorization codes were predictable for third parties and could be used to intercept and take over the client authorization process. As a result, other users accounts could be compromised. The oAuth Authorization Service is not enabled by default. We have updated the implementation to use sources with sufficient randomness to generate authorization tokens. No publicly available exploits are known.
Weakness classification
- security@open-xchange.com: CWE-330
- nvd@nist.gov: CWE-330
Primary references
- security@open-xchange.com — Third Party Advisory, VDB Entry
- security@open-xchange.com — Mailing List, Third Party Advisory
- security@open-xchange.com
- security@open-xchange.com — Release Notes
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes