CVE-2026-73576 - CERT CVE
ID CVE-2026-73576
Sažetak In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation vulnerability exists in the OnlyOffice integration. The zimbraDocumentEditingJwtSecret is generated using an insecure random number generator, resulting in insufficient entropy. An attacker who obtains a JWT signed with the generated secret may be able to recover the JWT signing secret through offline brute-force, potentially enabling JWT forgery.
Reference
CVSS
Base: 6.3
Impact: 4.0
Exploitability:1.8
Pristup
VektorSloženostAutentikacija
NETWORK HIGH LOW
Impact
PovjerljivostCjelovitostDostupnost
NONE HIGH NONE
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
Zadnje važnije ažuriranje 13-08-2026 - 16:19
Objavljeno 13-08-2026 - 16:19