Description
Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The vulnerability is also present in version 7.0.0 to version 7.1.3, but not exploitable due to environment conditions.
Published: 2026-09-30
Score: 9.4 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 30 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-613

Wed, 30 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The vulnerability is also present in version 7.0.0 to version 7.1.3, but not exploitable due to environment conditions.
Title Undisclosed RCE in Zammad v6.3 and higher
References
Metrics cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/V:C'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: DIVD

Published:

Updated: 2026-09-30T16:21:19.937Z

Reserved: 2026-09-29T09:46:12.490Z

Link: CVE-2026-102489

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-30T17:16:40.550

Modified: 2026-09-30T17:16:40.550

Link: CVE-2026-102489

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T17:30:19Z

Weaknesses
  • CWE-284

    Improper Access Control

  • CWE-613

    Insufficient Session Expiration