CVE-2025-68402CWE-287

FreshRSS has an authentication bypass due to truncated bcrypt hash [edge branch]

High · published March 9, 2026

CVSS v4.0
8.2
EPSS
0%
Percentile
18.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.2 · HIGH
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
EPSS
0.00271 · 18.3th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-03-09T19:41Z
EPSS history
Timeline
  • 09 MAR 19:41Z
    FreshRSS has an authentication bypass due to truncated bcrypt hash [edge branch]
    cvelistv5