CVE-2025-68402 HIGH

CVE-2025-68402: FreshRSS has an authentication bypass due to truncated bcrypt hash [edge branch]

Vendor Freshrss
Product FreshRSS
Weakness CWE-287 · Improper authentication
Published March 9, 2026
Last update March 9, 2026
View on NVD All CVEs

CVSS base score

8.2/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

FreshRSS is a free, self-hostable RSS aggregator. From 57e1a37 - 00f2f04, the lengths of the nonce was changed from 40 chars to 64. password_verify() is currently being called with a constructed string (SHA-256 nonce + part of a bcrypt hash) instead of the raw user password. Due to bcrypt’s 72-byte input truncation, this causes password verification to succeed even when the user enters an incorrect password. This vulnerability is fixed in 1.27.2-dev (476e57b). The issue was only present in the edge branch and never in a stable release.

Key dates

02Disclosure timeline

March 9, 2026 CVE published
March 9, 2026 Record updated