---
id: "CVE-2026-125652"
page: "https://infrastack.ai/live/CVE-2026-125652"
kind: "vulnerability"
aliases: ["CVE-2026-125652"]
title: "Keycloak: password reset page lets a login skip PKCE checks"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "keycloak", "oauth", "self-hosted", "sso"]
not_affected_if: ["no-pkce-clients", "password-reset-disabled"]
published_at: "2026-11-10T08:16:41+00:00"
first_seen_at: "2026-11-10T08:20:42+00:00"
updated_at: "2026-11-10T08:22:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125652", "first_seen_at": "2026-11-10T08:20:42+00:00"}]
exploit_sources: []
---

# Keycloak: password reset page lets a login skip PKCE checks

Link for people: https://infrastack.ai/live/CVE-2026-125652 (this .md is for agents)

Keycloak skips mandatory PKCE checks when a user starts a login after visiting the password reset page. An attacker who intercepts a login code can exchange it for a session without the code verifier and take over the user's account.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Keycloak version in use against the affected ranges in the NVD entry (https://nvd.nist.gov/vuln/detail/CVE-2026-125652)
- Confirm whether clients rely on PKCE and whether the password reset flow is enabled in the realm

## Timeline

- 2026-11-10T08:20:42+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-125652

## From the sources

A flaw was found in the keycloak-services component of Keycloak, which provides the core authentication and authorization logic for the identity provider. The issue occurs when a user initiates a login after visiting the password reset page, causing the system to skip mandatory security checks for Proof Key for Code Exchange (PKCE). This could allow an attacker who intercepts a login code to gain unauthorized access to the user's account without needing the required security verifier.

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