CVE-2026-102489
Zammad GmbH Zammad Session Fixation Vulnerability
CVSS
9.8
Crítica
EPSS
22.5%
p98
KEV
SIM
2 de out. de 2026
Exploit Today
79
0-100
Publicado: 30 de set. de 2026 · Última mod.: 10 de out. de 2026 · CWE-384
Produto
Zammad GmbH / Zammad
Vulnerabilidade
Zammad GmbH Zammad Session Fixation Vulnerability
Adicionado ao KEV
2 de out. de 2026
Corrigir até
5 de out. de 2026
Uso conhecido em ransomware
Não
Descrição resumida
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.
Ação necessária
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.
Notas
https://zammad.com/en/product/releases/ ; https://community.zammad.org/t/take-care-local-privilege-escalation-cve-2026-102490-is-reported-as-being-actively-exploited/21297/2 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-102489
Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The bug is also present in version 7.0.0 to version 7.1.2, but not exploitable due to changes in the underlying framework.
- community.zammad.orghttps://community.zammad.org/t/take-care-local-privilege-escalation-cve-2026-102490-is-reported-as-being-actively-exploited/21297/2
- csirt.divd.nlhttps://csirt.divd.nl/CVE-2026-102489
- csirt.divd.nlhttps://csirt.divd.nl/DIVD-2026-00015
- zammad.comhttps://zammad.com/en/advisories/cve-2026-102489-cve-2026-102490
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102489