CVE-2026-63170
Omnispace Agora Project 26.10.0 Predictable Share Token via md5Id
CVSS Score
3.7
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 forge the shared-calendar iCal share token by deriving md5Id() from predictable fields such as object creation time, which is self-disclosed through autorDate and the iCal CREATED field. Attackers can compute the creation minute and forge the md5Id token to access and read a shared calendar's iCal feed without authorization.
| CWE | CWE-340 |
| 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:H/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
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-2026-63170-shared-calendar-ical-share-token-forgeable-from-a-leaked-creation agora-project.net: https://www.agora-project.net/ vulncheck.com: https://www.vulncheck.com/advisories/omnispace-agora-project-predictable-share-token-via-md5id
Credits
Geoffrey Robert of akailabs Valentin Holubec of akailabs