Vulnerability-Lookup

GHSA-83R6-96M8-R52P

Vulnerability from github – Published: 2026-06-12 12:31 – Updated: 2026-06-12 15:30

Details

A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when 'recycleRefreshTokens' is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or threads. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

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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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-50631"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-12T10:16:23Z",
    "severity": "HIGH"
  },
  "details": "A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when \u0027recycleRefreshTokens\u0027 is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or threads.\u00a0Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.",
  "id": "GHSA-83r6-96m8-r52p",
  "modified": "2026-06-12T15:30:34Z",
  "published": "2026-06-12T12:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50631"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/11/8"
    }
  ],
  "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"
    }
  ]
}

CVE-2026-50631 (GCVE-0-2026-50631)

Vulnerability from cvelistv5 – Published: 2026-06-12 08:59 – Updated: 2026-06-12 14:04

Title

Apache CXF: OAuth2: TOCTOU Race Condition in Refresh Token Processing

Summary

Severity

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/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-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/s83t3x4r626o9h8rt…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/06/11/8

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache CXF	Affected: 4.2.0 , < 4.2.2 (semver) Affected: 0 , < 4.1.7 (semver)

Credits

Guanping Zhang reported this vulnerability.

Show details on NVD website

JSON

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-06-12T09:28:09.644Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/06/11/8"
          }
        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.4,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
              "version": "3.1"
            }
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                "id": "CVE-2026-50631",
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-12T14:03:56.077000Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2026-06-12T14:04:22.866Z",
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        },
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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-83R6-96M8-R52P

CVE-2026-50631 (GCVE-0-2026-50631)

Tags

Sightings

Nomenclature