CVE-2026-102489 - Zammad GmbH Zammad Session Fixation Vulnerability (known exploited)
Added to CISA KEV on 2026-10-02. 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.
CRITICAL
CISA KEV
ACTIVELY EXPLOITED
Severity & confidence
Source severitycritical
Platform severitycritical
Confidenceconfirmed
Exploitationactively exploited
CVSS-
Affected
ProductsZammad
Reporting sources (3)
CISA - Known Exploited Vulnerabilities
CISA - Cybersecurity Advisories
NIST NVD - National Vulnerability Database
๐ฏ Why should I care?
- On the CISA Known Exploited Vulnerabilities list.
- Credible sources report active exploitation in the wild.
Timeline & provenance
Published2026-10-02T00:00:00
Last updated2026-10-21T04:58:06
Ingested2026-10-02T16:14:27
FreshnessNEAR-REAL-TIME
Threat typeexploitation
Recommended action
Apply the vendor-supplied patch immediately. Review vendor and CISA guidance for detection and mitigation.
Next steps
- Identify affected systems in your environment.
- Apply the vendor patch or mitigation guidance.
- Review logs for indicators described in the advisory.
- Follow the affected vendor/product to track updates.
Confidence explanation
This object is reported by 3 independent sources.
Source type: gov ยท Original: CISA - Known Exploited Vulnerabilities
