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.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Omnispace Agora Project unaffected
Version Status Constraints
0 affected ≤ 26.10.0

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Agora-project Subscribe
Agora-project Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.agora-project.net/ cve-icon cve-icon
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 cve-icon cve-icon
https://www.vulncheck.com/advisories/omnispace-agora-project-predictable-share-token-via-md5id cve-icon cve-icon
History

Fri, 13 Nov 2026 17:30:00 +0000

Type Values Removed Values Added
References

Fri, 13 Nov 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Omnispace Agora Project 26.10.0 Predictable Share Token via md5Id
First Time appeared Agora-project
Agora-project agora-project
Weaknesses CWE-340
CPEs cpe:2.3:a:agora-project:agora-project:*:*:*:*:*:*:*:*
Vendors & Products Agora-project
Agora-project agora-project
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T17:26:25.202Z

Reserved: 2026-07-15T21:18:20.186Z

Link: CVE-2026-63170

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T17:17:34.280

Modified: 2026-11-13T18:17:47.503

Link: CVE-2026-63170

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses