GHSA-JRV5-8W28-4265

Vulnerability from github – Published: 2026-06-09 06:31 – Updated: 2026-07-29 18:15
VLAI
Summary
Spring LDAP has Authentication Bypass with Empty Password
Details

Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password.

Affected versions: Spring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3.

Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.0.3"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.ldap:spring-ldap-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.3.7"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.ldap:spring-ldap-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.3.0"
            },
            {
              "fixed": "3.3.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.ldap:spring-ldap-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2.0"
            },
            {
              "last_affected": "3.2.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.ldap:spring-ldap-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2.4.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-41720"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-29T18:15:29Z",
    "nvd_published_at": "2026-06-09T05:16:35Z",
    "severity": "HIGH"
  },
  "details": "Spring LDAP\u0027s DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password.\n\nAffected versions:\nSpring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3.",
  "id": "GHSA-jrv5-8w28-4265",
  "modified": "2026-07-29T18:15:29Z",
  "published": "2026-06-09T06:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41720"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spring-projects/spring-ldap/issues/407"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spring-projects/spring-ldap/commit/30b90c9fb61af87208ed051fc31349ef4d418f75"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spring-projects/spring-ldap/commit/5cc73a6b7fb1d2bcb950c4d69221c6d192d79795"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spring-projects/spring-ldap/commit/e2748d44bdce4f6cb4663b9b8d8462e34808f09c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/spring-projects/spring-ldap"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spring-projects/spring-ldap/releases/tag/3.3.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spring-projects/spring-ldap/releases/tag/4.0.4"
    },
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-41720"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Spring LDAP has Authentication Bypass with Empty Password"
}



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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

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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.