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Vulnerability record · CVE-2025-68402 · published 9 March 2026

CVE-2025-68402: Improper authentication vulnerability

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.

8.2 CVSS 4.0 High EPSS 0.28% · top 81.2% CWE-287 · Improper authentication Deferred
8.2CVSS 4.0 base score
0.28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/FreshRSS/FreshRSS/commit/476e57b04646416e24e24c56133c9fadf9e52b95
https://github.com/FreshRSS/FreshRSS/pull/8061
https://github.com/FreshRSS/FreshRSS/pull/8320
https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-pcq9-mq6m-mvmp

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Source: NIST National Vulnerability Database (record CVE-2025-68402), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.