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TI-2026-85483 Aliases CVE-2026-115740GHSA-v56v-3qfh-cch5

Server-side request forgery in Trellix DLP on-prem extensions

Priority LOW 24CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

Trellix DLP on-prem extensions through 11.13.1 contain a server-side request forgery flaw (CWE-918). The file Prefix parameter in the OpenEventEvidenceFile.do endpoint accepts arbitrary UNC paths without validation, so the server opens the supplied path and Windows starts SMB authentication to the attacker's host. A remote attacker with low privileges can trigger this.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

Server side request forgery vulnerability exists in the DLP on-prem extensions version 11.13.1 and earlier allows the file Prefix parameter in the OpenEventEvidenceFile.do endpoint accepts arbitrary UNC paths without validation. The server-side code attempts to open the specified file path, causing Windows to resolve the hostname and initiate SMB authentication to the attacker-controlled host.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00259 17th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TrellixDLP on-prem extensionsup to 11.13.1—No fix listedCNA
  • DLP on-prem extensions VendorTrellix Affected up to 11.13.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Trellix DLP on-prem extensions.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-115740
  2. 2026-11-05 CVSS score added · CISA ADP
  3. 2026-11-05 CISA SSVC decision points changed
  4. 2026-11-05 Alias added: GHSA-v56v-3qfh-cch5

References

Other 1

  • TI-2024-10633 OS command injection in Trellix Enterprise Security Manager CVSS 3.1CRITICAL 9.8
  • TI-2024-05266 Deserialization of untrusted data in Trellix Intrusion Prevention System Manager CVSS 3.1CRITICAL 9.8
  • TI-2024-10632 Path traversal in Trellix Enterprise Security Manager CVSS 3.1HIGH 8.2
  • TI-2023-05589 Command injection in Trellix ESM CVSS 3.1HIGH 8.4
  • TI-2023-03101 OS command injection in Trellix Enterprise Security Manager CVSS 3.1HIGH 8.8
  • TI-2023-05161 Path traversal in Trellix Application and Change Control CVSS 3.1HIGH 8.4
See all 58 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences