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: freshrss
References4
- github.com/FreshRSS/FreshRSS/security/advisories/GHSA-qw34-frg7… ExploitPatchVendor Advisory
- github.com/FreshRSS/FreshRSS/security/advisories/GHSA-qw34-frg7… ExploitPatchVendor Advisory
- github.com/FreshRSS/FreshRSS/commit/7d4854a0a4f5665db599f18c340… Patch
- github.com/FreshRSS/FreshRSS/pull/8029 Issue Tracking
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 40 · as of 11 November 2026
- CWE
- CWE-770
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.