VulnSocial

CVE-2026-73576Disclosure(synacor / zimbra_collaboration_suite)

LOWCVSS 6.5 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

synacor CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-1241

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • zimbra_collaboration_suite

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
synacor
Products
zimbra_collaboration_suite

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-08-13: 2Technical Details · 2026-08-13: 208-13
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-73576 In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation vulnerability exists in the OnlyOffice integration. The zimbraDocumentEditingJwtSecret… https://www.cve.org/CVERecord?id=CVE-2026-73576 ----- Traducción: CVE-2026-73576 En … https://infoflow.cloud`

    Post summary

    A brief disclosure of CVE-2026-73576, highlighting weak cryptographic key generation in the OnlyOffice integration of Zimbra Collaboration, with a link to the CVE record.

    0000039
    97 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-73576 In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation vulnerability exists in the OnlyOffice integration. The zimbraDocumentEditingJwtSecret… https://www.cve.org/CVERecord?id=CVE-2026-73576

    Post summary

    A weak cryptographic key generation vulnerability has been disclosed in Zimbra Collaboration’s OnlyOffice integration for versions prior to 10.1.17.

    00000986
    57.9K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appsynacorzimbra_collaboration_suite---

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