Traccar through 6.16.0 Weak Password Recovery via TokenManager Token Purpose Confusion

Advisories

Traccar through 6.16.0 Weak Password Recovery via TokenManager Token Purpose Confusion

severity: high
date: 10/11/2026
Affecting: Traccar <= 6.16.0
CVE: CVE-2026-108737
CWE: CWE-640 Weak Password Recovery Mechanism for Forgotten Password
CVSS: 7.6
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
References: https://hackmd.io/@haind/traccar-token-purpose-confusion
https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/api/signature/TokenManager.java#L47-L109
https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/api/resource/PasswordResource.java#L72-L90
https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/api/resource/SessionResource.java#L77-L93
https://github.com/traccar/traccar
Credit: HaiND from the Post and Telecommunication Institute of Technology
Description: Traccar through 6.16.0 contains a weak password recovery vulnerability that allows attackers to reuse password reset tokens as session credentials because TokenManager does not bind tokens to a purpose. Attackers holding a leaked reset link can obtain a full session via /api/session or change passwords via /api/password/update, retaining access for seven days even after the victim resets their password.

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