SEPTEMBER 17, 2026
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Case File

CVE-2026-18363

CRITICAL · CVSS 9.1 EPSS 0.30%

Source: NVD + CISA KEV + EPSS · Published 2026-07-30 · Last synced 2026-08-29

CyberRota Analysis

AI-Generated

A logic vulnerability in the password reset token validation routine of osTicket allows attackers to bypass expiry checks on valid tokens, potentially enabling unauthorized password resets and account compromises. This issue affects versions prior to v1.17.8 and v1.18.4, and organizations using these versions should prioritize patching to mitigate the risk of account takeover. Security teams should assess their deployment of osTicket and implement the necessary updates to safeguard user accounts.

CVE
CVE-2026-18363
Severity
CRITICAL
CVSS
9.1
EPSS
0.30%

Original NVD Description

A logic vulnerability in the password reset token validation routine implemented by osTicket in versions prior to v1.17.8 and v1.18.4. During the password reset process, the application retrieves the timestamp associated with the provided token and checks whether the configured validity period has expired. Consequently, the expiry check is only performed if the timestamp lookup fails, allowing tokens with an existing timestamp to bypass the intended expiry validation. Therefore, an attacker able to obtain a valid password reset token could reuse it to perform an unauthorised password reset and compromise the affected account.