Vulnerability from bitnami_vulndb
Published
2026-08-25 12:16
Modified
2026-08-25 12:42
Summary
Keycloak: potential bypass of brute force protection
Details

A vulnerability was found in Keycloak. This flaw allows attackers to bypass brute force protection by exploiting the timing of login attempts. By initiating multiple login requests simultaneously, attackers can exceed the configured limits for failed attempts before the system locks them out. This timing loophole enables attackers to make more guesses at passwords than intended, potentially compromising account security on affected systems.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "keycloak",
        "purl": "pkg:bitnami/keycloak"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "22.0.0"
            },
            {
              "fixed": "22.12.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-4629"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "A vulnerability was found in Keycloak. This flaw allows attackers to bypass brute force protection by exploiting the timing of login attempts. By initiating multiple login requests simultaneously, attackers can exceed the configured limits for failed attempts before the system locks them out. This timing loophole enables attackers to make more guesses at passwords than intended, potentially compromising account security on affected systems.",
  "id": "BIT-keycloak-2024-4629",
  "modified": "2026-08-25T12:42:31.008Z",
  "published": "2026-08-25T12:16:16.496Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6493"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6494"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6495"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6497"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6499"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6500"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6501"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2024-4629"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2276761"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hnsecurity/vulns/blob/main/HNS-2024-09-Keycloak.md"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4629"
    },
    {
      "type": "WEB",
      "url": "https://security.humanativaspa.it/an-analysis-of-the-keycloak-authentication-system/"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Keycloak: potential bypass of brute force protection"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.