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5.3

Shirasagi groupware may let attackers download shared files

CVE-2026-82582 · published 1 month ago
Summary

The Shirasagi collaboration platform has a weakness that lets someone who isn’t authorized use a special key to access the shared file feature. This could let an attacker retrieve files that should be private. Apply the vendor's security update or disable the vulnerable feature until it is patched.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
shirasagi project shirasagi <= v1.20.2
Original advisory text
An authorization bypass vulnerability exists in SHIRASAGI through a user-controlled key, which may allow an unauthorized attacker to retrieve files from the groupware's shared file feature.
An authorization bypass vulnerability exists in SHIRASAGI through a user-controlled key, which may allow an unauthorized attacker to retrieve files from the groupware's shared file feature.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-639Authorization Bypass Through User-Controlled Key
Timeline
Published10 Sep 2026
Updated31 Oct 2026
First seen10 Sep 2026
Sources
CVE-2026-82582 · NVD
CVE-2026-82582 · MITRE
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