# 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.

- Page: https://www.vulneraibility.com/cve/CVE-2026-102489
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2026-10-02; CISA due date 2026-10-05
- EPSS: 22.48%
- Unvetted proof-of-concept code on GitHub: 3 GitHub proofs of concept (first 2026-10-06)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2026-10-02)
- Weakness: CWE-384
- Published: 2026-09-30

## Affected versions

- Zammad GmbH Zammad: affected < 6.3.0; >= 6.3.0 and < 6.5.4; >= 7.0.0 and < 7.1.3

A version outside these ranges is not a statement that it is unaffected.

## References

- [advisory] https://csirt.divd.nl/DIVD-2026-00015
- [advisory] https://csirt.divd.nl/CVE-2026-102489
- [advisory] https://zammad.com/en/advisories/cve-2026-102489-cve-2026-102490
- [other] https://community.zammad.org/t/take-care-local-privilege-escalation-cve-2026-102490-is-reported-as-being-actively-exploited/21297/2
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102489

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.