Zammad GmbH Zammad Session Fixation Vulnerability
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.
CISA required action: 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
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Zammad GmbH
- Product
- Zammad
- CISA KEV
- added 2 Oct 2026, due 5 Oct 2026 (27d overdue)
- Exploitation
- observed in the wild
- Fix
- available
- Weakness
- CWE-384
Why it ranks 57 (Critical)
- CISA KEV listed, remediation due 2026-10-05
- Covered by 4 independent sources
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- Vendor advisory (zammad.com)
- CVE-2026-102489 on this site · NVD · CVE.org · Vulnpedia · KEV
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