CVE-2026-115786: falha de média gravidade em Zimbra Collaboration Suite
Zimbra Collaboration Suite Shared-File Mailbox Quota Accounting Error Enables Quota Exhaustion
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.5epss 0.4%
A mailbox quota-accounting vulnerability in Zimbra Collaboration Suite (ZCS) allows an authenticated user to consume another user’s mailbox quota by repeatedly sharing and revoking a document. Creation of the recipient’s shared-file record charges the document size to mailbox-wide usage. Revocation deletes the record and reverses its folder counters without reversing the mailbox-wide charge. Repeated normal share notifications therefore accumulate quota usage after the visible records are gone. On accounts with a finite quota, this can prevent incoming mail and other size-increasing operations without recipient interaction. The issue affects ZCS 10.1.16 and 10.1.20.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
Zimbra · Zimbra Collaboration SuiteCVEs relacionadas — Zimbra Collaboration Suite
No mesmo produto, das mais perigosas para as menos.
CVE-2026-115785MEDIUMZimbra Collaboration Suite Data Source Test SMTP Command Injection via Unsanitized Email AddressEPSS 0.7%CVE-2026-93639HIGHZimbra Collaboration Suite Missing Authorization in ConfigureZimlet Enables Delegated Administrator Privilege EscalationEPSS 0.4%CVE-2026-50055MEDIUMZimbra Collaboration Suite Sieve Notify Filter Action Bypasses Mail Forwarding Restriction via Variable ExpansionEPSS 0.4%CVE-2026-50056HIGHZimbra Collaboration Suite Local Privilege Escalation via zmmailboxdmgr JVM Argument InjectionEPSS 0.3%CVE-2026-93636MEDIUMZimbra Collaboration Suite LDAP Filter Injection via Calendar Resource Attribute NameEPSS 0.3%CVE-2026-93637LOWZimbra Collaboration Suite GraphQL Batched Authentication Bypasses Pre-Auth Rate LimitingEPSS 0.3%