SSRF Vulnerability in Group-Office by Intermesh Affects Enterprise CRM and Groupware
CVE-2026-25511

8.2HIGH

Key Information:

Vendor

Intermesh

Status
Groupoffice
Vendor
CVE Published:
4 February 2026

What is CVE-2026-25511?

Group-Office, an enterprise customer relationship management and groupware tool, is susceptible to a significant server-side request forgery (SSRF) vulnerability. Authenticated users within the System Administrator group can exploit this flaw through the WOPI service discovery URL, thereby accessing internal hosts and ports. The vulnerability allows the exfiltration of the SSRF response body via the built-in debug system, which can lead to unauthorized server-side file reading. It has been confirmed that this issue is resolved in the updated versions 6.8.150, 25.0.82, and 26.0.5.

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Affected Version(s)

groupoffice < 6.8.150 < 6.8.150

groupoffice < 25.0.82 < 25.0.82

groupoffice < 26.0.5 < 26.0.5

References

https://github.com/Intermesh/groupoffice/security/advisor...
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https://github.com/Intermesh/groupoffice/commit/5ac199dce...
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CVSS V4

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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