CVE-2025-68402 PUBLISHED

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

Assigner: GitHub_M
Reserved: 16.12.2025 Published: 09.03.2026 Updated: 09.03.2026

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.

Metrics

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
CVSS Score: 8.2

Product Status

Vendor FreshRSS
Product FreshRSS
Versions
  • Version < 476e57b04646416e24e24c56133c9fadf9e52b95 is affected

References

Problem Types

  • CWE-287: Improper Authentication CWE