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9.8

Loki server can crash when processing crafted encrypted data

published 23 days ago
Summary

The Loki software may stop working if it receives specially formed encrypted messages. This happens because the program mistakenly treats raw data as a number, causing it to panic. Update Loki to the latest version or apply the vendor’s patch to prevent the crash.

What to do
  • Update cleanstart loki to version 3.7.1-r1.
Affected software
Ecosystem VendorProductAffected versions
CleanStart cleanstart loki < 3.7.1-r1
Fix: upgrade to 3.7.1-r1
Original advisory text
incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs
Security vulnerability affects the loki package. An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.8 Critical
Timeline
Published26 Sep 2026
Updated26 Sep 2026
First seen26 Sep 2026
Sources
CLEANSTART-2026-WW85548 · OSV
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