🛡️ GHSA-j9xq-j329-2xvg — keycloak-core (CVE-2021-3754)

⚪ Unknown ✅ No Known Exploit CWE-20 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Duplicate Advisory: Keycloak user may register themselves with same email ID of any existing user

# Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-4vc8-pg5c-vg4x. This link is maintained to preserve external references.

# Original Description

A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

Weakness class

GHSA-j9xq-j329-2xvg is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

GHSA-j9xq-j329-2xvg is recorded against 1 package.

  • org.keycloak:keycloak-core

Timeline and source

Published on 27 August 2022 and last revised on 20 December 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
access.redhat.com (Web)
bugzilla.redhat.com (Web)
github.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE CWE-20
Public Exploit ✅ No
Source OSV
Published 2022-08-27
Updated 2026-08-20
Modified 2024-12-20
Fix URL N/A

Affected Packages

Software From version Fixed in
org.keycloak:keycloak-core — —

Similar Threats

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