AUGUST 16, 2026
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Case File

CVE-2026-39924

MEDIUM · CVSS 6.8 EPSS 0.22% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

Flarum versions prior to 1.8.16 are vulnerable due to improper session invalidation, allowing attackers with valid session tokens to maintain access even after a victim changes their password. This flaw results from the failure to clear active session cookies and API bearer tokens during password changes, posing a risk of unauthorized account access. Organizations using Flarum should prioritize this update to mitigate potential account compromise risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-39924
Severity
MEDIUM
CVSS
6.8
EPSS
0.22%

Original NVD Description

Flarum before 1.8.16 contains an improper session invalidation vulnerability that allows attackers who hold a valid session token to retain full account access after a victim changes their password, because the access_tokens table is never cleared on password change events. The TokensClearer::clearPasswordTokens() function only removes rows from the password_tokens table while leaving all active session cookies and API bearer tokens intact, including long-lived RememberAccessToken entries, and administrator-forced password resets via the user update endpoint are equally ineffective at revoking attacker-held sessions.