Vulnerability-Lookup

GHSA-293Q-567P-WMWQ

Vulnerability from github – Published: 2026-06-10 00:31 – Updated: 2026-06-10 00:31

Details

Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

Severity

6.8 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-47838"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-10T00:16:54Z",
    "severity": "MODERATE"
  },
  "details": "SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user.\n\nAffected versions:\nSpring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.",
  "id": "GHSA-293q-567p-wmwq",
  "modified": "2026-06-10T00:31:53Z",
  "published": "2026-06-10T00:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47838"
    },
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-47838"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-47838 (GCVE-0-2026-47838)

Vulnerability from cvelistv5 – Published: 2026-06-09 23:50 – Updated: 2026-06-11 03:55

Title

Unauthorized User Impersonation when Using X.509 Client Certificates

Summary

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

Severity

6.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-287 - Improper Authentication

Assigner

vmware

References

1 reference

URL	Tags
https://spring.io/security/cve-2026-47838

Impacted products

1 product

Vendor	Product	Version
Spring	Spring Security	Affected: 5.7.0 , < 5.7.25 (custom) Affected: 5.8.0 , < 5.8.27 (custom) Affected: 6.3.0 , < 6.3.18 (custom) Affected: 6.4.0 , < 6.4.18 (custom) Affected: 6.5.0 , < 6.5.11 (custom)

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        "metrics": [
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              "content": {
                "id": "CVE-2026-47838",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T00:00:00+00:00",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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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.

Action not permitted

GHSA-293Q-567P-WMWQ

CVE-2026-47838 (GCVE-0-2026-47838)

Tags

Sightings

Nomenclature