CVE-2026-102489

EUVD-2026-90080
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 vulnerability is also present in version 7.0.0 to version 7.1.3, but not exploitable due to environment conditions.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
DIVDCNA
9.4 CRITICAL
NETWORK
LOW
NONE
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/V:C
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
zammadzammad
6.3.0 ≤
𝑥
< 6.5.4
CNA
Vulnerability Media Exposure
References
https://csirt.divd.nl/CVE-2026-102489
https://csirt.divd.nl/DIVD-2026-00015