Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2023-6787

Improper Authentication

Published: Apr 25, 2024 | Modified: Jun 30, 2025
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
6.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Ubuntu
Vulnerability-free packages from our partners
root.io logo minimus.io logo echo.ai logo
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2023-6787
CWEhttps://cwe.mitre.org/data/definitions/287.html

A flaw was found in Keycloak that occurs from an error in the re-authentication mechanism within org.keycloak.authentication. This flaw allows hijacking an active Keycloak session by triggering a new authentication process with the query parameter prompt=login, prompting the user to re-enter their credentials. If the user cancels this re-authentication by selecting Restart login, an account takeover may occur, as the new session, with a different SUB, will possess the same SID as the previous session.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

NameVendorStart VersionEnd Version
Build_of_keycloakRedhat- (including)- (including)
KeycloakRedhat*22.0.10 (excluding)
KeycloakRedhat23.0.0 (including)24.0.3 (excluding)
Red Hat build of Keycloak 22RedHatrhbk/keycloak-operator-bundle:22.0.10-1*
Red Hat build of Keycloak 22RedHatrhbk/keycloak-rhel9:22-13*
Red Hat build of Keycloak 22RedHatrhbk/keycloak-rhel9-operator:22-16*
Red Hat build of Keycloak 22.0.10RedHatkeycloak-core*

Potential Mitigations

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2026 Aqua Security Software Ltd.   Privacy Policy | Terms of Use