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Public proof of conceptFix available

CVE-2022-31110

A public proof of concept exists; no exploitation attested.

  • Published2022-06-29
  • Fixed in2022-06-21
  • WeaknessCWE-1333 · CWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2022-06-2918:15CVE publishedNVD

Versions per branch

NVD · OSV
Rsshub
BranchAffectedFixed in
2022.x< 2022-06-212022-06-21
rsshub
BranchAffectedFixed in
1.0≤ 1.0.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • DIYgod RSSHub
    Affected
    • = commits prior to 5c4177441417b44a6e45c3c63e9eac2504abeb5bno fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-06-29

Fix

  1. Update Rsshub to 2022-06-21

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-04-22
  • CNACVSS 3.15.3known since 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-400known since 2026-10-23
  • NVDweakness (CWE)CWE-1333read 2026-10-23
  • FIRST EPSSEPSS score1.6 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2022-06-23

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2022-06-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-jvxx-v45p-v5vf

Frequently asked questions

What is CVE-2022-31110?

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.

Is CVE-2022-31110 actively exploited?

A proof-of-concept exploit exists for CVE-2022-31110, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-31110?

CVE-2022-31110 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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