CVE-2022-31110

Name: CVE-2022-31110
Creator: NVD / NIST
Published: 2022-06-29T18:15:08.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.24%

Last modified Jun 17, 2026

CVE-2022-31110 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. RSSHub is an open source, extensible RSS feed generator. In commits prior to 5c4177441417 passing some special values to the `filter` and `filterout` parameters can cause an abnormally high CPU. EPSS estimates a 1.24% chance of exploitation in the next 30 days.

Description

RSSHub is an open source, extensible RSS feed generator. In commits prior to 5c4177441417 passing some special values to the `filter` and `filterout` parameters can cause an abnormally high CPU. This results in an impact on the performance of the servers and RSSHub services which may lead to a denial of service. This issue has been fixed in commit 5c4177441417 and all users are advised to upgrade. There are no known workarounds for this issue.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.24%

65.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Rsshub	Rsshub	< 2022-06-21

References

https://github.com/DIYgod/RSSHub/commit/5c4177441417b44a6e45c3c63e9eac2504abeb5bPatch, Third Party Advisory
https://github.com/DIYgod/RSSHub/issues/10045Exploit, Issue Tracking, Mitigation, Third Party Advisory
https://github.com/DIYgod/RSSHub/security/advisories/GHSA-jvxx-v45p-v5vfPatch, Third Party Advisory
https://github.com/DIYgod/RSSHub/commit/5c4177441417b44a6e45c3c63e9eac2504abeb5bPatch, Third Party Advisory
https://github.com/DIYgod/RSSHub/issues/10045Exploit, Issue Tracking, Mitigation, Third Party Advisory
https://github.com/DIYgod/RSSHub/security/advisories/GHSA-jvxx-v45p-v5vfPatch, Third Party Advisory

Timeline

Published: Jun 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31110?

How severe is CVE-2022-31110?

CVE-2022-31110 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.24% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31110?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31110?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST