Enterprise Server
by GitHub
CVEs (119)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-8034 | Cri | 0.64 | 9.8 | 0.00 | May 7, 2026 | A server-side request forgery (SSRF) vulnerability was identified in the GitHub Enterprise Server notebook viewer that allowed an attacker to access internal services by exploiting URL parser confusion between the validation layer and the HTTP request library. The hostname… | ||
| CVE-2026-5845 | Cri | 0.62 | 9.6 | 0.00 | Apr 21, 2026 | An improper authorization vulnerability in scoped user-to-server (ghu_) token authorization in GitHub Enterprise Server allows an authenticated attacker to access private repositories outside the intended installation scope, which can include write operations, via an… | ||
| CVE-2026-5921 | Hig | 0.58 | 8.9 | 0.00 | Apr 21, 2026 | A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to extract sensitive environment variables from the instance through a timing side-channel attack against the notebook rendering service. When private mode was… | ||
| CVE-2026-4296 | Hig | 0.57 | 8.8 | 0.00 | Apr 21, 2026 | An incorrect regular expression vulnerability was identified in GitHub Enterprise Server that allowed an attacker to bypass OAuth redirect URI validation. An attacker with knowledge of a first-party OAuth application's registered callback URL could craft a malicious… | ||
| CVE-2026-3854 | Hig | 0.57 | 8.8 | 0.24 | Mar 10, 2026 | An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an attacker with push access to a repository to achieve remote code execution on the instance. During a git push operation, user-supplied push option values were… | ||
| CVE-2026-9312 | Hig | 0.53 | 8.2 | 0.07 | May 27, 2026 | A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to send crafted requests to internal services by exploiting insufficient input validation in an upload endpoint. By injecting path traversal… | ||
| CVE-2026-7541 | Hig | 0.49 | 7.5 | 0.00 | May 7, 2026 | 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 parsed user-controlled… | ||
| CVE-2026-6736 | Med | 0.42 | 6.5 | 0.00 | May 7, 2026 | 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 signup endpoint did not… | ||
| CVE-2026-1999 | Med | 0.42 | 6.5 | 0.00 | Feb 18, 2026 | An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed an attacker to merge their own pull request into a repository without having push access by exploiting an authorization bypass in the enable_auto_merge mutation for pull requests.… | ||
| CVE-2026-8106 | Med | 0.40 | 6.1 | 0.00 | May 7, 2026 | 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 proper… | ||
| CVE-2026-8606 | Med | 0.38 | 5.9 | 0.00 | May 27, 2026 | A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to cause the server to issue HTTP requests to internal services via the security advisories package lookup feature. By directing requests to an internal… | ||
| CVE-2026-5512 | Med | 0.28 | 4.3 | 0.00 | Apr 21, 2026 | 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 authorization check, and… | ||
| CVE-2026-3307 | Low | 0.18 | 2.7 | 0.00 | Apr 21, 2026 | 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 the owner_id parameter… | ||
| CVE-2024-0507 | 0.06 | — | 0.66 | Jan 16, 2024 | 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 in versions 3.11.3,… | |||
| CVE-2024-0200 | 0.06 | — | 0.72 | Jan 16, 2024 | An unsafe reflection vulnerability was identified in GitHub Enterprise Server that could lead to reflection injection. This vulnerability could lead to the execution of user-controlled methods and remote code execution. To exploit this bug, an actor would need to be logged… | |||
| CVE-2024-9487 | 0.04 | — | 0.22 | Oct 10, 2024 | An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance. Exploitation required the encrypted… | |||
| CVE-2025-23369 | 0.01 | — | 0.02 | Jan 21, 2025 | An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were… | |||
| CVE-2026-3582 | 0.00 | — | 0.00 | Mar 10, 2026 | 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 the search REST API… | |||
| CVE-2026-2266 | 0.00 | — | 0.00 | Mar 10, 2026 | An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed DOM-based cross-site scripting via task list content. The task list content extraction logic did not properly re-encode browser-decoded text nodes before rendering, allowing… | |||
| CVE-2026-3306 | 0.00 | — | 0.00 | Mar 10, 2026 | 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 project that already… |
- risk 0.64cvss 9.8epss 0.00
A server-side request forgery (SSRF) vulnerability was identified in the GitHub Enterprise Server notebook viewer that allowed an attacker to access internal services by exploiting URL parser confusion between the validation layer and the HTTP request library. The hostname…
- risk 0.62cvss 9.6epss 0.00
An improper authorization vulnerability in scoped user-to-server (ghu_) token authorization in GitHub Enterprise Server allows an authenticated attacker to access private repositories outside the intended installation scope, which can include write operations, via an…
- risk 0.58cvss 8.9epss 0.00
A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to extract sensitive environment variables from the instance through a timing side-channel attack against the notebook rendering service. When private mode was…
- risk 0.57cvss 8.8epss 0.00
An incorrect regular expression vulnerability was identified in GitHub Enterprise Server that allowed an attacker to bypass OAuth redirect URI validation. An attacker with knowledge of a first-party OAuth application's registered callback URL could craft a malicious…
- risk 0.57cvss 8.8epss 0.24
An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an attacker with push access to a repository to achieve remote code execution on the instance. During a git push operation, user-supplied push option values were…
- risk 0.53cvss 8.2epss 0.07
A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to send crafted requests to internal services by exploiting insufficient input validation in an upload endpoint. By injecting path traversal…
- risk 0.49cvss 7.5epss 0.00
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 parsed user-controlled…
- risk 0.42cvss 6.5epss 0.00
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 signup endpoint did not…
- risk 0.42cvss 6.5epss 0.00
An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed an attacker to merge their own pull request into a repository without having push access by exploiting an authorization bypass in the enable_auto_merge mutation for pull requests.…
- risk 0.40cvss 6.1epss 0.00
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 proper…
- risk 0.38cvss 5.9epss 0.00
A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to cause the server to issue HTTP requests to internal services via the security advisories package lookup feature. By directing requests to an internal…
- risk 0.28cvss 4.3epss 0.00
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 authorization check, and…
- risk 0.18cvss 2.7epss 0.00
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 the owner_id parameter…
- CVE-2024-0507Jan 16, 2024risk 0.06cvss —epss 0.66
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 in versions 3.11.3,…
- CVE-2024-0200Jan 16, 2024risk 0.06cvss —epss 0.72
An unsafe reflection vulnerability was identified in GitHub Enterprise Server that could lead to reflection injection. This vulnerability could lead to the execution of user-controlled methods and remote code execution. To exploit this bug, an actor would need to be logged…
- CVE-2024-9487Oct 10, 2024risk 0.04cvss —epss 0.22
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance. Exploitation required the encrypted…
- CVE-2025-23369Jan 21, 2025risk 0.01cvss —epss 0.02
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were…
- CVE-2026-3582Mar 10, 2026risk 0.00cvss —epss 0.00
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 the search REST API…
- CVE-2026-2266Mar 10, 2026risk 0.00cvss —epss 0.00
An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed DOM-based cross-site scripting via task list content. The task list content extraction logic did not properly re-encode browser-decoded text nodes before rendering, allowing…
- CVE-2026-3306Mar 10, 2026risk 0.00cvss —epss 0.00
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 project that already…
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