CVE-2026-63151
Omnispace Agora Project 26.10.0 Predictable Token Information Disclosure via DisplayIcal
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Omnispace Agora Project through 26.10.0 contains a predictable token generation vulnerability that allows unauthenticated attackers to access private calendar data by exploiting a missing dateCrea value that causes the md5Id token to collapse to md5(calendarId.userId), both small enumerable integers. Attackers can compute valid tokens and request the misc&action=DisplayIcal endpoint with a forged md5Id to read any user's private calendar events without authentication.
| CWE | CWE-330 |
| Vendor | omnispace |
| Product | agora project |
| Published | Nov 13, 2026 |
| Last Updated | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
Omnispace / Agora Project
0 ≤ 26.10.0
References
akailabs.fr: https://www.akailabs.fr/blog/multiple-vulnerabilities-in-agora-project-26-5-2#cve-2026-63151-personal-calendars-zero-entropy-md5id-share-token-allows-unauthen agora-project.net: https://www.agora-project.net/ vulncheck.com: https://www.vulncheck.com/advisories/omnispace-agora-project-predictable-token-information-disclosure-via-displayical
Credits
Geoffrey Robert of akailabs Valentin Holubec of akailabs