漏洞信息
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Vulnerability Title
GitHub CLI tokens leak via `gh attestation` commands
Vulnerability Description
GitHub CLI (gh) is GitHub’s official command line tool. Prior to 2.93.0, GitHub CLI incorrectly includes authorization header in API requests to TUF repository mirrors via gh attestation, gh release verify, and gh release verify-asset commands. The CLI uses a shared HTTP client with an authentication layer that automatically attaches tokens to outgoing requests. This layer lacks accurate host detection and can incorrectly attribute the target host, providing it with a token it should never receive. Specifically, the host normalization logic collapses any *.github.com subdomain to github.com, so a request to tuf-repo.github.com (a GitHub Pages site, not a GitHub API endpoint) is treated as a request to github.com and receives the user's github.com token. For hosts that don't match github.com or a known GHES instance at all, the resolver falls back to GH_ENTERPRISE_TOKEN if set. The gh attestation, gh release verify and gh release verify-asset commands fetch data from several external hosts as part of their normal operation (TUF metadata from tuf-repo.github.com and tuf-repo-cdn.sigstore.dev, artifact bundles from Azure Blob Storage). Because these requests go through the same authenticated HTTP client, the token is sent to all of them. This vulnerability is fixed in 2.93.0.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Vulnerability Type
授权机制不正确
Vulnerability Title
GitHub CLI 安全漏洞
Vulnerability Description
GitHub CLI是GitHub CLI开源的一个命令行上的 GitHub。 GitHub CLI 2.93.0之前版本存在安全漏洞,该漏洞源于在gh attestation、gh release verify和gh release verify-asset命令中向TUF仓库镜像的API请求错误包含授权标头,CLI使用共享HTTP客户端且身份验证层自动附加令牌,主机规范化逻辑将任何github.com子域折叠为github.com,因此对tuf-repo.github.com的请求被视为对github.
CVSS Information
N/A
Vulnerability Type
N/A