In Zimbra Collaboration before 10.1.17, a local file inclusion (LFI) vulnerability exists…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In Zimbra Collaboration before 10.1.17, a local file inclusion (LFI) vulnerability exists in the Zimbra Classic Web Client due to improper validation of the fu request parameter. An unauthenticated attacker can exploit this vulnerability by supplying a crafted path, potentially allowing unauthorized disclosure of protected files, such as WEB-INF/web.xml, within the web application directory. This occurs in the Forward servlet.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Collaboration (Zimbra) Fixed in 10.1.17
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Zimbra Collaboration 10.1.17
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2026-51666 In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation…Priority LOW 29
- TI-2026-51663 Path traversal in Zimbra CollaborationPriority LOW 29
- TI-2026-51662 Cross-site scripting in Zimbra CollaborationPriority LOW 27
Timeline
- 2026-10-02 Threatist record created from CVE-2026-73574
- 2026-10-03 Alias added: GHSA-79qx-wf73-69v4
References
More Zimbra vulnerabilities
- TI-2026-51660 OS command injection in Zimbra Collaboration KEVCVSS 3.1HIGH 8.9
- TI-2025-40820 Cross-site scripting in Zimbra Collaboration KEVCVSS 3.1HIGH 7.2
- TI-2024-18266 An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0. KEVCVSS 3.1MEDIUM 6.1
- TI-2024-30553 An issue was discovered in Zimbra Collaboration (ZCS) 10.1.x before 10.1.1, 10.0.x before… CVSS 3.1HIGH 8.8
- TI-2022-13998 Zimbra Collaboration Open Source 8.8.15 does not encrypt the initial-login randomly… CVSS 3.1CRITICAL 9.8
- TI-2026-63080 Path traversal in Zimbra Collaboration Suite CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-73574 · CVE Program
- CVE-2026-73574 · NVD
- FIRST EPSS
- GHSA-79qx-wf73-69v4 · GitHub Advisory Database · CC BY 4.0
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