CVE-2025-68148: FreshRSS globally denies access to feed via proxy modifying to 429 Retry-After

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-12-27 · updated 2026-10-13
Weakness: CWE-770

Description

FreshRSS is a free, self-hostable RSS aggregator. From version 1.27.0 to before 1.28.0, An attacker could globally deny access to feeds via proxy modifying to 429 Retry-After for a large list of feeds on given instance, making it unusable for majority of users. This issue has been patched in version 1.28.0.

Affected products

FreshRSS: from 1.27.0 before 1.28.0 — fixed in 1.28.0

How to fix

Upgrade to a fixed version: FreshRSS 1.28.0. Check the vendor advisory for mitigations.

References

https://github.com/FreshRSS/FreshRSS/commit/7d4854a0a4f5665db599f18c34035786465639f3
https://github.com/FreshRSS/FreshRSS/pull/8029
https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-qw34-frg7-gf78
https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-qw34-frg7-gf78

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