CVE-2026-102489: Zammad GmbH Zammad Session

Last refreshed2026-10-03

Status: KEV | Advisory ID: CVE-2026-102489

Key Details

CVE	CVE-2026-102489
Affected products	Zammad GmbH Zammad
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified as	CWE-384 (Session Fixation)
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-10-02.
Federal remediation deadline	2026-10-05 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
Zammad GmbH	Zammad

Vendor

Product

Affected Versions

Patch Status

Zammad GmbH

Zammad

Subsystems	General OT
Sectors	Multiple

What to Know

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)

What to Do

Monitor Zammad GmbH's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-102489
CVE	https://www.cve.org/CVERecord?id=CVE-2026-102489

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-102489

CVE

https://www.cve.org/CVERecord?id=CVE-2026-102489

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-10-02
Required Action Due Date	2026-10-05
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 each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Field

Value

KEV Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Date Added to KEV

2026-10-02

Required Action Due Date

2026-10-05

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 each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.