Vulnerability-Lookup

CVE-2026-64652 (GCVE-0-2026-64652)

Vulnerability from cvelistv5 – Published: 2026-08-06 17:45 – Updated: 2026-08-07 17:45

Title

GitHub CLI: Partial token disclosure in `gh auth status` output

Summary

GitHub CLI (gh) is GitHub's official command line tool. Prior to version 2.97.0, gh auth status masked only the characters after the last underscore in certain fine-grained personal access tokens and GitHub App tokens. As a result, part of an affected token could appear in terminal or CI output that is captured or shared. Authenticated users are affected if they ran gh auth status (without the --show-token flag) with a token type whose format contains an underscore after the prefix. This includes fine-grained personal access tokens (github_pat_*) and GitHub App installation and user access tokens (ghs_*, ghu_*; for example, ghs_<APPID>_<JWT>), as well as the Actions GITHUB_TOKEN. Classic tokens such as gho_* and ghp_* have an underscore-free body and are not affected. This issue is fixed in version 2.97.0.

Severity

3.3 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 17:44 UTC

CWE

CWE-201 - Insertion of Sensitive Information Into Sent Data

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/cli/cli/security/advisories/GH…	x_refsource_CONFIRM
https://github.com/cli/cli/commit/3f6a16a9f8c7fe9…	x_refsource_MISC
https://github.com/cli/cli/releases/tag/v2.97.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
cli	cli	Affected: < 2.97.0	guessed

Show details on NVD website

JSON

To clipboard

{
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              "content": {
                "id": "CVE-2026-64652",
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                "role": "CISA Coordinator",
                "timestamp": "2026-08-07T17:44:46.820786Z",
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FKIE_CVE-2026-64652

Vulnerability from fkie_nvd - Published: 2026-08-06 22:18 - Updated: 2026-09-10 20:36

Severity

3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/cli/cli/commit/3f6a16a9f8c7fe9676aa8d8f47b399310dd231c3
	security-advisories@github.com	https://github.com/cli/cli/releases/tag/v2.97.0
	security-advisories@github.com	https://github.com/cli/cli/security/advisories/GHSA-cg6r-mpgc-h9mm

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "cli",
          "vendor": "cli",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.97.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitHub CLI (gh) is GitHub\u0027s official command line tool. Prior to version 2.97.0, gh auth status masked only the characters after the last underscore in certain fine-grained personal access tokens and GitHub App tokens. As a result, part of an affected token could appear in terminal or CI output that is captured or shared. Authenticated users are affected if they ran gh auth status (without the --show-token flag) with a token type whose format contains an underscore after the prefix. This includes fine-grained personal access tokens (github_pat_*) and GitHub App installation and user access tokens (ghs_*, ghu_*; for example, ghs_\u003cAPPID\u003e_\u003cJWT\u003e), as well as the Actions GITHUB_TOKEN. Classic tokens such as gho_* and ghp_* have an underscore-free body and are not affected. This issue is fixed in version 2.97.0."
    }
  ],
  "id": "CVE-2026-64652",
  "lastModified": "2026-09-10T20:36:14.340",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
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              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-07T17:44:46.820786Z",
          "version": "2.0.3"
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  },
  "published": "2026-08-06T22:18:13.087",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cli/cli/commit/3f6a16a9f8c7fe9676aa8d8f47b399310dd231c3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cli/cli/releases/tag/v2.97.0"
    },
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      "source": "security-advisories@github.com",
      "url": "https://github.com/cli/cli/security/advisories/GHSA-cg6r-mpgc-h9mm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-201"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
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}

MSRC_CVE-2026-64652

Vulnerability from csaf_microsoft - Published: 2026-08-11 01:02 - Updated: 2026-08-23 14:50

Summary

GitHub CLI: Partial token disclosure in `gh auth status` output

Scope

1 vulnerability in this advisory, including CVE-2026-64652.

CVE-2026-64652

3.3 (Low)


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

Fixed: 1 product Known affected: 1 product

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

ubuntu-cve-2026-64652

Vulnerability from osv_ubuntu

Published

2026-08-06 22:18

Modified

2026-08-13 00:13

Summary

Details

GitHub CLI (gh) is GitHub's official command line tool. Prior to version 2.97.0, gh auth status masked only the characters after the last underscore in certain fine-grained personal access tokens and GitHub App tokens. As a result, part of an affected token could appear in terminal or CI output that is captured or shared. Authenticated users are affected if they ran gh auth status (without the --show-token flag) with a token type whose format contains an underscore after the prefix. This includes fine-grained personal access tokens (github_pat_) and GitHub App installation and user access tokens (ghs_, ghu_; for example, ghs_), as well as the Actions GITHUB_TOKEN. Classic tokens such as gho and ghp_* have an underscore-free body and are not affected. This issue is fixed in version 2.97.0.

Severity

3.3 (Low)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-64652	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-64652	REPORT
	https://github.com/cli/cli/commit/3f6a16a9f8c7fe9…	REPORT
	https://github.com/cli/cli/releases/tag/v2.97.0	REPORT
	https://github.com/cli/cli/security/advisories/GH…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gh",
            "binary_version": "2.4.0+dfsg1-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "gh",
        "purl": "pkg:deb/ubuntu/gh@2.4.0+dfsg1-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.0+dfsg1-1",
        "2.4.0+dfsg1-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gh",
            "binary_version": "2.45.0-1ubuntu0.3+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "gh",
        "purl": "pkg:deb/ubuntu/gh@2.45.0-1ubuntu0.3+esm3?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.27.0+dfsg1-1build1",
        "2.30.0-2",
        "2.35.0-1",
        "2.40.1+dfsg1-1",
        "2.42.1-1",
        "2.43.1-1",
        "2.44.1-1",
        "2.44.1-2",
        "2.45.0-1",
        "2.45.0-1build1",
        "2.45.0-1ubuntu0.1",
        "2.45.0-1ubuntu0.2",
        "2.45.0-1ubuntu0.2+esm1",
        "2.45.0-1ubuntu0.2+esm2",
        "2.45.0-1ubuntu0.3",
        "2.45.0-1ubuntu0.3+esm1",
        "2.45.0-1ubuntu0.3+esm2",
        "2.45.0-1ubuntu0.3+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gh",
            "binary_version": "2.46.0-4ubuntu0.26.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "gh",
        "purl": "pkg:deb/ubuntu/gh@2.46.0-4ubuntu0.26.04.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.46.0-3",
        "2.46.0-4",
        "2.46.0-4ubuntu0.26.04.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "GitHub CLI (gh) is GitHub\u0027s official command line tool. Prior to version 2.97.0, gh auth status masked only the characters after the last underscore in certain fine-grained personal access tokens and GitHub App tokens. As a result, part of an affected token could appear in terminal or CI output that is captured or shared. Authenticated users are affected if they ran gh auth status (without the --show-token flag) with a token type whose format contains an underscore after the prefix. This includes fine-grained personal access tokens (github_pat_*) and GitHub App installation and user access tokens (ghs_*, ghu_*; for example, ghs_\u003cAPPID\u003e_\u003cJWT\u003e), as well as the Actions GITHUB_TOKEN. Classic tokens such as gho_* and ghp_* have an underscore-free body and are not affected. This issue is fixed in version 2.97.0.",
  "id": "UBUNTU-CVE-2026-64652",
  "modified": "2026-08-13T00:13:01Z",
  "published": "2026-08-06T22:18:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-64652"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-64652"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cli/cli/commit/3f6a16a9f8c7fe9676aa8d8f47b399310dd231c3"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cli/cli/releases/tag/v2.97.0"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cli/cli/security/advisories/GHSA-cg6r-mpgc-h9mm"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-64652"
  ]
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-64652 (GCVE-0-2026-64652)

FKIE_CVE-2026-64652

MSRC_CVE-2026-64652

ubuntu-cve-2026-64652

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour