🛡️ CVE-2021-3513 — keycloak-parent

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-209 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Incorrect implementation of lockout feature in Keycloak

A flaw was found in keycloak where a brute force attack is possible even when the permanent lockout feature is enabled. This is due to a wrong error message displayed when wrong credentials are entered. The highest threat from this vulnerability is to confidentiality.

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 high, integrity none, availability none.

Weakness class

CVE-2021-3513 is classified as CWE-209: Information Exposure Through an Error Message. Error output includes internal detail such as paths, queries or stack traces that assists an attacker.

Affected software

CVE-2021-3513 is recorded against 1 package.

  • org.keycloak:keycloak-parent (fixed in 13.0.0)

Timeline and source

Published on 23 August 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

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

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-209
Public Exploit ✅ No
Source OSV
Published 2022-08-23
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
org.keycloak:keycloak-parent — 13.0.0

Similar Threats

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