Vulnerability-Lookup

CVE-2026-53561 (GCVE-0-2026-53561)

Vulnerability from cvelistv5 – Published: 2026-08-25 10:12 – Updated: 2026-08-25 10:12

Title

Apache Hive: Unauthenticated authentication bypass in HiveServer2 HTTP SAML bearer-token validation allows impersonation of any Hive user

Summary

An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network attacker to authenticate as an arbitrary Hive user and obtain an authenticated HiveServer2 session via a forged Authorization: Bearer token sent to the /cliservice HTTP endpoint. Users are recommended to upgrade to 4.2.1 version that includes the fix for this issue. Access / authorization required: No Hive credentials, SAML IdP login, or knowledge of the server signing secret is required. The attacker only needs network reachability to the HiveServer2 HTTP port (typically /cliservice), directly or through a reverse proxy such as Apache Knox that forwards unauthenticated requests to HS2. The instance must have SAML authentication enabled in HTTP mode. Deployments where Knox handles SSO and HiveServer2 uses LDAP/Kerberos (not native SAML mode) are not affected by this specific issue.

Severity

No CVSS data available.

CWE

CWE-287 - Improper Authentication
CWE-345 - Insufficient Verification of Data Authenticity
CWE-305 - Authentication Bypass by Primary Weakness

Assigner

apache mitre root

References

4 references

URL	Tags
https://github.com/apache/hive	product
https://issues.apache.org/jira/browse/HIVE-29653	issue-tracking
https://github.com/apache/hive/commit/6ca06ca1104…	patch
https://lists.apache.org/thread/6d56mk501fp4f8cb5…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Apache Software Foundation	Apache Hive	Affected: 4.0.0 , ≤ 4.2.0 (semver)	guessed

Credits

Andrew Rukin (Arenadata)

Show details on NVD website

JSON

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          "url": "https://github.com/apache/hive/commit/6ca06ca1104ff7462363087a867d70d546134774"
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FKIE_CVE-2026-53561

Vulnerability from fkie_nvd - Published: 2026-08-25 11:16 - Updated: 2026-08-25 11:16

Severity

Summary

References

	URL	Tags
	security@apache.org	https://github.com/apache/hive
	security@apache.org	https://github.com/apache/hive/commit/6ca06ca1104ff7462363087a867d70d546134774
	security@apache.org	https://issues.apache.org/jira/browse/HIVE-29653
	security@apache.org	https://lists.apache.org/thread/6d56mk501fp4f8cb5wvrpj2jwd9knt05

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.hive:hive-service",
          "product": "Apache Hive",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "4.2.0",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network attacker to authenticate as an arbitrary Hive user and obtain an authenticated HiveServer2 session via a forged Authorization: Bearer token sent to the /cliservice HTTP endpoint. Users are recommended to upgrade to 4.2.1 version that includes the fix for this issue.\n\nAccess / authorization required: No Hive credentials, SAML IdP login, or knowledge of the server signing secret is required. The attacker only needs network reachability to the HiveServer2 HTTP port (typically /cliservice), directly or through a reverse proxy such as Apache Knox that forwards unauthenticated requests to HS2. The instance must have SAML authentication enabled in HTTP mode. Deployments where Knox handles SSO and HiveServer2 uses LDAP/Kerberos (not native SAML mode) are not affected by this specific issue."
    }
  ],
  "id": "CVE-2026-53561",
  "lastModified": "2026-08-25T11:16:53.543",
  "metrics": {},
  "published": "2026-08-25T11:16:53.543",
  "references": [
    {
      "source": "security@apache.org",
      "url": "https://github.com/apache/hive"
    },
    {
      "source": "security@apache.org",
      "url": "https://github.com/apache/hive/commit/6ca06ca1104ff7462363087a867d70d546134774"
    },
    {
      "source": "security@apache.org",
      "url": "https://issues.apache.org/jira/browse/HIVE-29653"
    },
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      "url": "https://lists.apache.org/thread/6d56mk501fp4f8cb5wvrpj2jwd9knt05"
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  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Received",
  "weaknesses": [
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          "value": "CWE-345"
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      "source": "security@apache.org",
      "type": "Primary"
    }
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}

GHSA-G32F-6XHP-3FFW

Vulnerability from github – Published: 2026-08-25 12:31 – Updated: 2026-08-25 12:31

Details

Access / authorization required: No Hive credentials, SAML IdP login, or knowledge of the server signing secret is required. The attacker only needs network reachability to the HiveServer2 HTTP port (typically /cliservice), directly or through a reverse proxy such as Apache Knox that forwards unauthenticated requests to HS2. The instance must have SAML authentication enabled in HTTP mode. Deployments where Knox handles SSO and HiveServer2 uses LDAP/Kerberos (not native SAML mode) are not affected by this specific issue.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-53561"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-25T11:16:53Z",
    "severity": null
  },
  "details": "An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network attacker to authenticate as an arbitrary Hive user and obtain an authenticated HiveServer2 session via a forged Authorization: Bearer token sent to the /cliservice HTTP endpoint. Users are recommended to upgrade to 4.2.1 version that includes the fix for this issue.\n\nAccess / authorization required: No Hive credentials, SAML IdP login, or knowledge of the server signing secret is required. The attacker only needs network reachability to the HiveServer2 HTTP port (typically /cliservice), directly or through a reverse proxy such as Apache Knox that forwards unauthenticated requests to HS2. The instance must have SAML authentication enabled in HTTP mode. Deployments where Knox handles SSO and HiveServer2 uses LDAP/Kerberos (not native SAML mode) are not affected by this specific issue.",
  "id": "GHSA-g32f-6xhp-3ffw",
  "modified": "2026-08-25T12:31:23Z",
  "published": "2026-08-25T12:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53561"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/hive/commit/6ca06ca1104ff7462363087a867d70d546134774"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/hive"
    },
    {
      "type": "WEB",
      "url": "https://issues.apache.org/jira/browse/HIVE-29653"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/6d56mk501fp4f8cb5wvrpj2jwd9knt05"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-53561 (GCVE-0-2026-53561)

FKIE_CVE-2026-53561

GHSA-G32F-6XHP-3FFW

Tags

Sightings

Nomenclature