Vulnerability-Lookup

GHSA-WHQR-FGM5-X77Q

Vulnerability from github – Published: 2026-05-28 21:32 – Updated: 2026-05-28 21:32

Details

An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone federated token rescoping mechanism does not propagate the original token's expiry to the newly issued token. When a federated user rescopes a token via POST /v3/auth/tokens, the handle_scoped_token() function in the mapped authentication plugin returns response data without an expires_at value. The token provider falls back to issuing a token with a fresh default TTL. By rescoping repeatedly before each token expires, a user can maintain access indefinitely, bypassing operator-configured token lifetime policies. This is a variant of CVE-2012-3426. Only deployments using federated identity (SAML2, OpenID Connect) are affected.

Severity

6.0 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-44394"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T19:16:38Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone federated token rescoping mechanism does not propagate the original token\u0027s expiry to the newly issued token. When a federated user rescopes a token via POST /v3/auth/tokens, the handle_scoped_token() function in the mapped authentication plugin returns response data without an expires_at value. The token provider falls back to issuing a token with a fresh default TTL. By rescoping repeatedly before each token expires, a user can maintain access indefinitely, bypassing operator-configured token lifetime policies. This is a variant of CVE-2012-3426. Only deployments using federated identity (SAML2, OpenID Connect) are affected.",
  "id": "GHSA-whqr-fgm5-x77q",
  "modified": "2026-05-28T21:32:02Z",
  "published": "2026-05-28T21:32:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44394"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/keystone/+bug/2150379"
    },
    {
      "type": "WEB",
      "url": "https://security.openstack.org/ossa/OSSA-2026-015.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-44394 (GCVE-0-2026-44394)

Vulnerability from cvelistv5 – Published: 2026-05-28 00:00 – Updated: 2026-05-28 19:43

Summary

Severity

6 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-863 - Incorrect Authorization

Assigner

mitre

References

2 references

URL	Tags
https://bugs.launchpad.net/keystone/+bug/2150379
https://security.openstack.org/ossa/OSSA-2026-015.html

Impacted products

1 product

Vendor	Product	Version
OpenStack	Keystone	Affected: 14.0.0 , < 27.0.2 (semver) Affected: 28.0.0 , < 28.0.2 (semver) Affected: 29.0.0 , < 29.0.2 (semver)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44394",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-28T19:42:48.576995Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-28T19:43:05.616Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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    "cna": {
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          "vendor": "OpenStack",
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              "status": "affected",
              "version": "29.0.0",
              "versionType": "semver"
            }
          ]
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      ],
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            "attackVector": "NETWORK",
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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-WHQR-FGM5-X77Q

CVE-2026-44394 (GCVE-0-2026-44394)

Tags

Sightings

Nomenclature