ACTIVELY EXPLOITED
CVE-2026-102489: Zammad GmbH Zammad Session Fixation Vulnerability
| Vendor | Zammad GmbH |
|---|---|
| Product | Zammad |
| Actively exploited | Yes |
| Added to CISA KEV | 2 Oct 2026 |
| CISA federal deadline | 5 Oct 2026 |
| Weakness (CWE) | CWE-384 |
Required action (CISA's text)
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Description (NVD)
Zammad GmbH Zammad contains a session fixation vulnerability that can lead to remote code execution as the zammad user. This vulnerability can be chained with CVE-2026-102490.
SOURCES
Other Zammad GmbH flaws
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.