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{"timestamp":"2026-06-30T14:42:36.409765Z","id":"CVE-2026-35095","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

KTM System e-BOK allows the session identifier to be set by the client prior to authentication. If a cookie with a valid name is set, its value remains unchanged after successful login. This behaviour enables an attacker to fix a session ID for a victim and later hijack the authenticated session.

This issue was fixed in the patch published in June 2026.

AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE-384

https://cert.pl/posts/2026/06/CVE-2026-35095/

https://ktmsystem.pl/internetowe-biuro-obslugi-klienta/

[{"vendor":"KTM System","product":"e-BOK","defaultStatus":"unaffected","modules":["e-BOK"],"versions":[{"version":"0","lessThan":"06.2026","versionType":"custom","status":"affected"}]}]