CVE-2026-78355 OTRS - Path Traversal

OTRS 7.0.X, 8.0.X, 2023.X, 2024.X, 2025.X, and 2026.X before 2026.7.X contain a path traversal caused by improper validation in SendSupportBundle functionality, letting authenticated administrators delete files outside intended directories, exploit requires administrative access.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.72% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to version 2026.7.X or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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