Medium

gh — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-64654

GitHub CLI (gh) is GitHub's official command line tool. Prior to version 2.97.0, multiple GitHub CLI commands printed externally controlled gist, API, pull request, release, codespace, skill, or agent-task content without neutralizing terminal escape sequences. An attacker who can influence that content can embed escape sequences that are interpreted by the terminal of a user who runs an affected command, with impact ranging from cosmetic manipulation of the title or on-screen content to, on some terminal emulators, command execution. This extends the same class of issue as CVE-2026-45803—which addressed only gh run view --log—to the other affected command paths. This issue is fixed in version 2.97.0.

Products: gh
Affected versions: 2.27.0+dfsg1-1build1, 2.30.0-2, 2.35.0-1, 2.4.0+dfsg1-1, 2.4.0+dfsg1-2, 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, 2.46.0-3, 2.46.0-4, 2.46.0-4ubuntu0.26.04.1~esm1
Fixed versions: Not specified
CVEs: CVE-2026-64654
Confirmed fixed CVEs: Not specified
Updated in this feed: 31 Oct 2026, 02:49 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-64654

core-osv · Original source

Published 6 Aug 2026, 22:18 UTC

osv:UBUNTU-CVE-2026-64654

Fixed versions: Not specified

Complete source record

{
  "id": "281eb3570dac05f191e04986d962c096327ffa33bf62e494d42bc8568fa2e052",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-64654",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-64654",
    "summary": "GitHub CLI (gh) is GitHub's official command line tool. Prior to version 2.97.0, multiple GitHub CLI commands printed externally controlled gist, API, pull request, release, codespace, skill, or agent-task content without neutralizing terminal escape sequences. An attacker who can influence that content can embed escape sequences that are interpreted by the terminal of a user who runs an affected command, with impact ranging from cosmetic manipulation of the title or on-screen content to, on some terminal emulators, command execution. This extends the same class of issue as CVE-2026-45803—which addressed only gh run view --log—to the other affected command paths. This issue is fixed in version 2.97.0.",
    "evidence": "osv:UBUNTU-CVE-2026-64654",
    "products": [
      {
        "name": {
          "value": "gh",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2.4.0+dfsg1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.4.0+dfsg1-2",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "gh",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2.27.0+dfsg1-1build1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.30.0-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.35.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.40.1+dfsg1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.42.1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.43.1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.44.1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.44.1-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1build1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.2+esm1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.2+esm2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.3+esm1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.3+esm2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.45.0-1ubuntu0.3+esm3",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "gh",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2.46.0-4",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "gh",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2.46.0-3",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.46.0-4",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.46.0-4ubuntu0.26.04.1~esm1",
            "evidence": "/affected/3/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-64654",
      "aliases": [
        "UBUNTU-CVE-2026-64654"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gh",
            "purl": "pkg:deb/ubuntu/gh?arch=source&distro=jammy",
            "ecosystem": "Ubuntu:22.04:LTS"
          },
          "versions": [
            "2.4.0+dfsg1-1",
            "2.4.0+dfsg1-2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64654.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "gh",
                "binary_version": "2.4.0+dfsg1-2"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gh",
            "purl": "pkg:deb/ubuntu/gh?arch=source&distro=esm-apps%2Fnoble",
            "ecosystem": "Ubuntu:Pro:24.04:LTS"
          },
          "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"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64654.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "gh",
                "binary_version": "2.45.0-1ubuntu0.3+esm3"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gh",
            "purl": "pkg:deb/ubuntu/gh?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "2.46.0-4"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64654.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "gh",
                "binary_version": "2.46.0-4"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gh",
            "purl": "pkg:deb/ubuntu/gh?arch=source&distro=esm-apps%2Fresolute",
            "ecosystem": "Ubuntu:Pro:26.04:LTS"
          },
          "versions": [
            "2.46.0-3",
            "2.46.0-4",
            "2.46.0-4ubuntu0.26.04.1~esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64654.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "gh",
                "binary_version": "2.46.0-4ubuntu0.26.04.1~esm1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:59:16.171539103Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-64654"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-64654",
        "https://www.cve.org/CVERecord?id=CVE-2026-64654",
        "https://github.com/cli/cli/commit/2a1409fe88d416cc85fc96fb5bc473f83ed5a054",
        "https://github.com/cli/cli/releases/tag/v2.97.0",
        "https://github.com/cli/cli/security/advisories/GHSA-3m3g-3wcr-px46"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-64654",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 359570,
  "published_at": "2026-08-06T22:18:00+00:00"
}