CVE-2026-78355

Path Traversal in SendSupportBundle allows File Deletion Outside the Intended Directory

Published Oct 12, 2026 CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed

Description

A path traversal vulnerability in the OTRS SendSupportBundle functionality allows an authenticated administrator to reference file paths outside the intended directory.

This may allow files accessible to the OTRS application process to be deleted. The vulnerability does not bypass operating system file permissions. On OTRS versions prior to OTRS 7, the effective permissions of the web server process are relevant. Starting with OTRS 7, access is limited by the permissions of the dedicated OTRS user. Files with overly permissive ownership or file system permissions may therefore also be affected.

The affected functionality may additionally attempt to include controlled files in a support bundle. However, support bundles are sent to a predefined OTRS support address, and direct disclosure of arbitrary files to the attacker has not been demonstrated.

An attacker therefore requires valid administrative access to exploit the vulnerable functionality. The primary demonstrated impact is the deletion of files outside the intended directory within the effective permissions of the OTRS application process.

This issue affects OTRS:

* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.7.X

Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

OTRS GmbH (former OTRS AG)

OTRS

affected

Version	Status	Constraints
`7.0.x`	affected	—
`8.0.x`	affected	—
`2023.x`	affected	—
`2024.x`	affected	—
`2025.x`	affected	—
`2026.x`	affected	≤ 2026.6.x

OTRS GmbH (former OTRS AG)

((OTRS)) Community Edition

unaffected

Version	Status	Constraints
`6.x`	affected	—

No data.

Vendor Product Versions

Otrs

Version	Status	Scheme	Platform
`[7.0.0,8.0.0)`	affected	semver	—
`[8.0.0,9.0.0)`	affected	semver	—
`[2023.0.0,2024.0.0)`	affected	semver	—
`[2024.0.0,2025.0.0)`	affected	semver	—
`[2025.0.0,2026.0.0)`	affected	semver	—
`[2026.0.0,2026.7.0)`	affected	semver	—

Otrs

Otrs Community Edition

Version	Status	Scheme	Platform
`[6.0.0,7.0.0)`	affected	semver	—

Remediation

Vendor Solution

Update to latest version of OTRS (2026.7.1. or later). Please note that there will be no OTRS 7 patches

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.723% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://otrs.com/release-notes/otrs-security-advisory-2026-12/

History

Oct 15, 2026 7:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Oct 13, 2026 8:15 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Otrs Otrs otrs Otrs otrs Community Edition
Vendors & Products		Otrs Otrs otrs Otrs otrs Community Edition

Oct 12, 2026 7:00 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A path traversal vulnerability in the OTRS SendSupportBundle functionality allows an authenticated administrator to reference file paths outside the intended directory. This may allow files accessible to the OTRS application process to be deleted. The vulnerability does not bypass operating system file permissions. On OTRS versions prior to OTRS 7, the effective permissions of the web server process are relevant. Starting with OTRS 7, access is limited by the permissions of the dedicated OTRS user. Files with overly permissive ownership or file system permissions may therefore also be affected. The affected functionality may additionally attempt to include controlled files in a support bundle. However, support bundles are sent to a predefined OTRS support address, and direct disclosure of arbitrary files to the attacker has not been demonstrated. An attacker therefore requires valid administrative access to exploit the vulnerable functionality. The primary demonstrated impact is the deletion of files outside the intended directory within the effective permissions of the OTRS application process. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.7.X Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected
Title		Path Traversal in SendSupportBundle allows File Deletion Outside the Intended Directory
Weaknesses		CWE-22
References		https://otrs.com/release-notes/otrs-security-advisory-2026-12/
Metrics		cvssV3_1 `{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H'}`