A Cross-Site Scripting (XSS) vulnerability was identified in the repository transfer feature of GitHub Enterprise Server, which allows attackers to steal sensitive user information via social engineering. This vulnerability affected all versions of GitHub Enterprise Server and was fixed in version 3.10.17, 3.11.15, 3.12.9, 3.13.4, and 3.14.1. This vulnerability was reported via the GitHub Bug Bounty program.

An improper privilege management vulnerability allowed arbitrary workflows to be committed using an improperly scoped PAT through the use of nested tags. This vulnerability affected all versions of GitHub Enterprise Server and was fixed in version 3.10.17, 3.11.15, 3.12.9, 3.13.4, and 3.14.1. This vulnerability was reported via the GitHub Bug Bounty program.

actions/artifact is the GitHub ToolKit for developing GitHub Actions. Versions of `actions/artifact` on the 2.x branch before 2.1.2 are vulnerable to arbitrary file write when using `downloadArtifactInternal`, `downloadArtifactPublic`, or `streamExtractExternal` for extracting a specifically crafted artifact that contains path traversal filenames. Users are advised to upgrade to version 2.1.2 or higher. There are no known workarounds for this issue.

An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server, allowing an attacker to update the title, assignees, and labels of any issue inside a public repository. This was only exploitable inside a public repository. This vulnerability affected GitHub Enterprise Server versions before 3.14 and was fixed in versions 3.13.3, 3.12.8, and 3.11.14. Versions 3.10 of GitHub Enterprise Server are not affected. This vulnerability was reported via the GitHub Bug Bounty program.

An XML signature wrapping vulnerability was present in GitHub Enterprise Server (GHES) when using SAML authentication with specific identity providers utilizing publicly exposed signed federation metadata XML. This vulnerability allowed an attacker with direct network access to GitHub Enterprise Server to forge a SAML response to provision and/or gain access to a user with site administrator privileges. Exploitation of this vulnerability would allow unauthorized access to the instance without requiring prior authentication. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.14 and was fixed in versions 3.13.3, 3.12.8, 3.11.14, and 3.10.16. This vulnerability was reported via the GitHub Bug Bounty program.

An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed a GitHub App with only content: read and pull_request_write: write permissions to read issue content inside a private repository. This was only exploitable via user access token and installation access token was not impacted. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.14 and was fixed in versions 3.13.3, 3.12.8, 3.11.14 and 3.10.16. This vulnerability was reported via the GitHub Bug Bounty program.

An exposure of sensitive information vulnerability in GitHub Enterprise Server would allow an attacker to enumerate the names of private repositories that utilize deploy keys. This vulnerability did not allow unauthorized access to any repository content besides the name. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.14 and was fixed in versions 3.13.1, 3.12.6, 3.11.12, 3.10.14, and 3.9.17. This vulnerability was reported via the GitHub Bug Bounty program.

A Security Misconfiguration vulnerability in GitHub Enterprise Server allowed sensitive information disclosure to unauthorized users in GitHub Enterprise Server by exploiting organization ruleset feature. This attack required an organization member to explicitly change the visibility of a dependent repository from private to public. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.14 and was fixed in versions 3.13.1, 3.12.6, 3.11.12, 3.10.14, and 3.9.17. This vulnerability was reported via the GitHub Bug Bounty program.

An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed read access to issue content via GitHub Projects. This was only exploitable in internal repositories and required the attacker to have access to the corresponding project board. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.14 and was fixed in versions 3.13.1, 3.12.6, 3.11.12, 3.10.14, and 3.9.17. This vulnerability was reported via the GitHub Bug Bounty program.

An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed a suspended GitHub App to retain access to the repository via a scoped user access token. This was only exploitable in public repositories while private repositories were not impacted. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.14 and was fixed in versions 3.9.17, 3.10.14, 3.11.12, 3.12.6, 3.13.1. This vulnerability was reported via the GitHub Bug Bounty program.