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Medium 5.3
Out-of-bounds read vulnerability in GitHub Enterprise Server allowed disclosure of process memory in the Git service
An out-of-bounds read vulnerability was identified in GitHub Enterprise Server in the Git service (babeld). When proving possession of a host key, babeld's SSH implementation sized the session identifier by the current digest length rather than its own. An at…
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Medium 5.3
Cross-site request forgery vulnerability in GitHub Enterprise Server allowed deletion of stored ChatOps configuration through the Management Console
A cross-site request forgery vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to delete stored Slack and Microsoft Teams ChatOps configuration and provider credentials by inducing an authenticated Management Co…
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Medium 6.0
Missing authorization in GitHub Enterprise Server allowed repository writers to replace default branches via GraphQL
A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed a repository collaborator with write access to delete the current default branch through the GraphQL API and cause an attacker-controlled branch to become the new de…
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Medium 6.0
Authorization bypass vulnerability in GitHub Enterprise Server allowed reading of private pull request diffs and patches via repository name collision
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed any authenticated user of the instance to read the raw diff or patch of pull requests in private repositories without authorization. Access tokens for raw pull reque…
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Medium 6.6
Denial of service vulnerability in GitHub Enterprise Server allowed unauthenticated service disruption via deeply nested request parameters
A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause excessive CPU consumption and exhaust the pool of request-handling worker processes by sending a crafted form-encoded HTTP POST requ…
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Medium 5.3
Missing Authorization vulnerability was identified in GitHub Enterprise Server that allowed reading private repository metadata via delegated bypass rule suites
A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with write access to any repository to read metadata from private repositories they did not have access to, including private repository owners…
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Medium 5.7
Denial of service vulnerability in GitHub Enterprise Server allowed service disruption via deeply nested YAML in release notes configuration
A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to cause service disruption by supplying a repository release notes configuration file containing deeply nested YAML. When release notes were gener…
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Medium 5.3
An incorrect authorization vulnerability in GitHub Enterprise Server allows issue creation in unrelated public repositories
An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed a user-to-server token scoped to a GitHub App installation to perform certain write operations on public repositories outside the token's intended scope. This was…
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Medium 6.3
Stored cross-site scripting vulnerability in GitHub Enterprise Server allowed arbitrary JavaScript execution via crafted Discussion titles in the Q&A category
A stored cross-site scripting vulnerability was identified in GitHub Enterprise Server that allowed an authenticated attacker to execute arbitrary JavaScript in another user's browser by injecting a crafted payload into the title of a Discussion in the Q&A ca…
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Medium 6.0
Missing authorization vulnerability in GitHub Enterprise Server allowed disclosure of private repository contents via the Copilot pull request diff summary endpoint
A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to read source code from private repositories they did not have access to. The Copilot pull request description diff summary endpoint accepted …
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Medium 4.8
UI misrepresentation vulnerability in GitHub Enterprise Server allowed unauthorized organization runner management via undisclosed OAuth scope on consent screen
A UI misrepresentation vulnerability was identified in GitHub Enterprise Server that allowed an OAuth application to gain unintended access to an organization's runner management. An attacker could exploit this by creating an OAuth application requesting the …
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Medium 5.9
Reflected HTML injection vulnerability in GitHub Enterprise Server Management Console login page allowed credential theft
A reflected HTML injection vulnerability was identified in the GitHub Enterprise Server Management Console login page that could allow credential theft. The redirect_to query parameter on the /setup/unlock endpoint was reflected into an HTML attribute without…
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Medium 6.3
Denial of service vulnerability in GitHub Enterprise Server allowed service disruption via unauthenticated API endpoint
A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause service disruption by sending crafted requests with deeply nested JSON payloads to an unauthenticated API endpoint. The endpoint par…
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Medium 6.3
Authentication bypass vulnerability in GitHub Enterprise Server allowed creation of local user accounts bypassing the configured external identity provider
An authentication bypass vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to create a local user account, bypassing the configured external identity provider. When external authentication was enabled, the signu…
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Medium 5.3
Authorization bypass in GitHub Enterprise Server secret scanning push protection allows cross-repository modification of delegated bypass reviewers
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed an attacker with admin access on one repository to modify the secret scanning push protection delegated bypass reviewer list on another repository by manipulating th…
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Medium 5.3
Improper authorization vulnerability in GitHub Enterprise Server allowed disclosure of private repository names via mobile upload policy API
An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated attacker to determine the names of private repositories by their numeric ID. The mobile upload policy API endpoint did not perform an early author…
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Medium 5.3
Incorrect Authorization in GitHub Enterprise Server allows access to issue and commit search results without repo scope
An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with a classic personal access token (PAT) lacking the repo scope to retrieve issues and commits from private and internal repositories via …
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Medium 5.3CVE-2026-3306 Public exploit
Improper authorization in GitHub Projects allows modification of issue and pull request metadata without repository write access
An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to modify issue and pull request metadata through the project. When adding an item to a proje…
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Medium 6.0
Missing Authorization Check in GitHub Enterprise Server Allows Unauthorized Uploads to Repository Migration Exports
A Missing Authorization vulnerability was identified in GitHub Enterprise Server that allowed an attacker to upload unauthorized content to another user’s repository migration export due to a missing authorization check in the repository migration upload endp…
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Medium 5.3
Incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed unauthorized read-only access
An incorrect authorization vulnerability allowed unauthorized read access to the contents of internal repositories for contractor accounts when the Contractors API feature was enabled. The Contractors API is a rarely-enabled feature in private preview. This v…
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Medium 5.3
Missing Authorization vulnerability was identified in GitHub Enterprise Server that allowed unauthorized access to private repository names
A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed a user to see the names of private repositories that they wouldn't otherwise have access to in the Security Overview in GitHub Advanced Security. The Security Overvi…
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Medium 6.0
Authorization Bypass Vulnerability was Identified in GitHub Enterprise Server that Allowed Unauthorized Internal Users to Access Secret Scanning Alert Data
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed unauthorized internal users to access sensitive secret scanning alert data intended only for business owners. This issue could be exploited only by organization memb…
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Medium 5.5
Race Condition was identified in GitHub Enterprise Server that allowed maintaining admin permissions
A race condition in GitHub Enterprise Server allowed an existing admin to maintain permissions on a detached repository by making a GraphQL mutation to alter repository permissions while the repository is detached. This vulnerability affected all versions of …
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Medium 5.9
Repository administrator can bypass organization's ruleset using deploy keys
An Improper Privilege Management vulnerability was identified in GitHub Enterprise Server that allowed an attacker to use a deploy key pertaining to an organization to bypass an organization ruleset. An attacker would require access to a valid deploy key for …
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Medium 4.3
CSRF vulnerability was identified in GitHub Enterprise Server that allowed performing actions on behalf of a user
A Cross Site Request Forgery vulnerability was identified in GitHub Enterprise Server that allowed an attacker to execute unauthorized actions on behalf of an unsuspecting user. A mitigating factor is that user interaction is required. This vulnerability affe…
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Medium 6.3
Improper Privilege Management vulnerability was identified in GitHub Enterprise Server that allowed Privilege Escalation
An Improper Privilege Management vulnerability was identified in GitHub Enterprise Server that allowed an attacker to use the Enterprise Actions GitHub Connect download token to fetch private repository data. An attacker would require an account on the server…
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Medium 6.3
Path traversal vulnerability in GitHub Enterprise Server that allowed arbitrary file read with a specially crafted GitHub Pages artifact upload
A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker to gain unauthorized read permission to files by deploying arbitrary symbolic links to a GitHub Pages site with a specially crafted artifact tarball. To exploit…
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Medium 6.5
Cross-site Scripting in the tag name pattern field in the tag protections UI in GitHub Enterprise Server allows a malic…
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Medium 6.5
Privilege Escalation by Code Injection in the Management Console in GitHub Enterprise Server
An attacker with access to a Management Console user account with the editor role could escalate privileges through a command injection vulnerability in the Management Console. This vulnerability affected all versions of GitHub Enterprise Server and was fixed…
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Medium 4.9
Incorrect Authorization for Issue Comments in GitHub Enterprise Server
An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed issue comments to be updated with an improperly scoped token. This vulnerability did not allow unauthorized access to any repository content as it also required c…
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Medium 6.3
Race Condition allows Administrative Access on Organization Repositories
A race condition in GitHub Enterprise Server was identified that could allow an attacker administrator access. To exploit this, an organization needs to be converted from a user. This vulnerability affected all versions of GitHub Enterprise Server since 3.7 a…
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Medium 6.5
Improper Privilege Management allows for arbitrary workflows to be run
Improper privilege management allowed arbitrary workflows to be committed and run using an improperly scoped PAT. To exploit this, a workflow must have already existed in the target repo. This vulnerability affected all versions of GitHub Enterprise Server si…
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Medium 5.8
Race Condition allows Unauthorized Outside Collaborator
A race condition in GitHub Enterprise Server allows an outside collaborator to be added while a repository is being transferred. This vulnerability affected all versions of GitHub Enterprise Server since 3.8 and was fixed in version 3.8.12, 3.9.7, 3.10.4, and…
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Medium 6.8
Path traversal in GitHub Enterprise Server leading to arbitrary file reading when building a GitHub Pages site
A path traversal vulnerability was identified in GitHub Enterprise Server that allowed arbitrary file reading when building a GitHub Pages site. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the Gi…
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Medium 5.3
Improper access control in all versions of GitHub Enterprise Server allows unauthorized users to view private repositor…
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Medium 4.5
Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling
An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff in a re-opened Pull Request. To do so, an attacker would need write access to the repository. This vulnerability aff…
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Medium 5.3
Information disclosure in GitHub Enterprise Server leading to private repository leakage
An authorization/sensitive information disclosure vulnerability was identified in GitHub Enterprise Server that allowed a fork to retain read access to an upstream repository after its visibility was changed to private. This vulnerability affected all version…
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Medium 4.8
Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling
An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff in a re-opened Pull Request. To exploit this vulnerability, an attacker would need write access to the repository. T…
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Medium 4.8
Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling
An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff within the GitHub pull request UI. To do so, an attacker would need write access to the repository. This vulnerabili…
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Medium 6.5
Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling
An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch be…