CVE-2026-64655Published

GitHub CLI: Attestation Verification Bypass via Unescaped Regex Metacharacters in SAN Matching

cve-program · CVE-2026-64655

Published

cli

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "cli",
                    "product": "cli",
                    "versions": [
                        {
                            "version": "< 2.97.0",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-54222

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Aug 6, 2026, 6:41:54 PM

dateUpdated: Aug 8, 2026, 2:23:17 AM

3 related source bulletins · separate from aliases

msrc_CVE-2026-64655: GitHub CLI: Attestation Verification Bypass via Unescaped Regex Metacharacters in SAN Matching

CVE-2026-64655

openSUSE-SU-2026:21663-1: Security update for gh

CVE-2026-39821 · CVE-2026-64652 · CVE-2026-64653 · CVE-2026-64654 · CVE-2026-64655

openSUSE-SU-2026:11530-1: gh-2.97.0-1.1 on GA media

CVE-2026-64652 · CVE-2026-64653 · CVE-2026-64654 · CVE-2026-64655

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-64655

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Awaiting Analysis

Weakness classifications: CWE-185

Original publisher date fields

published: 2026-08-06T22:18:13.527

lastModified: 2026-09-10T20:36:14.340

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-mm27-mwq9-fr5g

Published

github.com/cli/cli/v2

SEMVER · introduced 0 → fixed 2.97.0

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GO-2026-6767

Published

github.com/cli/cli

SEMVER · introduced 0

github.com/cli/cli/v2

SEMVER · introduced 0 → fixed 2.97.0

Original source record · Cite this exact observation · Complete original publisher JSON