This weekWhy this label: added to the catalog 24 days ago

CVE-2026-102489Zammad GmbH Zammad Session Fixation Vulnerability

Product: Zammad GmbH Zammad
Added to CISA KEV: October 2, 2026
Deadline for US federal agencies: October 5, 2026
Known ransomware use: Not known
EPSS, next 30 days: 2.0%, higher than 80% of scored CVEs (Oct 25, 2026)
Weakness: CWE-384

What CISA says

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.

What CISA asks you to do

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.

Sources

Also exploited recently

Data from CISA's Known Exploited Vulnerabilities catalog (public domain) and FIRST EPSS, refreshed hourly. Rheono did not find or test this vulnerability; this page summarizes public sources.