CVE-2026-6736

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 signup endpoint did not properly enforce the authentication restriction, allowing account creation and session establishment without identity provider validation. The created account was limited to the default base permissions configured on the instance. Exploitation required network access to a GHES instance configured with an external authentication provider. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.2, 3.19.6, 3.18.9, 3.17.15, and 3.16.18.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Github

Products

Enterprise Server

CVE-2026-41512

Remote code execution via JavaScript injection in `BrowserAutomation::PlaywrightService`

ai-scanner is an AI model safety scanner built on NVIDIA garak. From version 1.0.0 to before version 1.4.1, there is a remote code execution vulnerability via JavaScript injection in `BrowserAutomation::PlaywrightService`. This issue has been patched in version 1.4.1.

CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed

Vendors

0din-ai Mozilla

Products

Ai-scanner 0din Scanner

CVE-2026-7541

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 parsed user-controlled JSON request bodies without size or depth limits, causing excessive CPU and memory consumption. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.2, 3.19.6, 3.18.9, 3.17.15, and 3.16.18. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Github

Products

Enterprise Server

CVE-2026-8034

Server-side request forgery vulnerability in GitHub Enterprise Server notebook viewer via URL parser confusion

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 validation used a different URL parser than the request library, enabling a crafted URL to pass validation while directing the request to an unintended host. Exploitation required network access to the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.16.18, 3.17.15, 3.18.9, 3.19.6, and 3.20.2. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS 4.0 · 7.9 High EPSS < 1% KEV · Not listed

Vendors

Github

Products

Enterprise Server

CVE-2026-0708

Libucl: libucl: denial of service via embedded null byte in ucl input

A flaw was found in libucl. A remote attacker could exploit this by providing a specially crafted Universal Configuration Language (UCL) input that contains a key with an embedded null byte. This can cause a segmentation fault (SEGV fault) in the `ucl_object_emit` function when parsing and emitting the object, leading to a Denial of Service (DoS) for the affected system.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Libucl Vstakhov

Products

Libucl Libucl

CVE-2026-8106

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 proper sanitization, enabling an attacker to inject a form element that could capture administrator credentials. Exploitation required an administrator to click a crafted link and enter their credentials. This vulnerability affected GitHub Enterprise Server versions 3.19.1 through 3.19.5 and 3.20.0 through 3.20.1, and was fixed in versions 3.19.6 and 3.20.2. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS 4.0 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Github

Products

Enterprise Server

CVE-2026-42574

apko dirFS has a symlink-following path traversal that allows multiple entry points to escape the build root

apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before version 1.2.5, a crafted .apk could install a TypeSymlink tar entry whose target pointed outside the build root, and a subsequent directory-creation or file-write entry in the same or later archive could traverse that symlink to reach host paths the build user could write to. This issue has been patched in version 1.2.5.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Chainguard-dev

Products

Apko

CVE-2026-8259

Tenda AC6 httpd telnet os command injection

A vulnerability has been found in Tenda AC6 2.0/15.03.06.23. The affected element is an unknown function of the file /goform/telnet of the component httpd. The manipulation of the argument lan.ip leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

CVSS 4.0 · 5.1 Medium EPSS 4.9% KEV · Not listed

Vendors

Tenda

Products

Ac6 Ac6 Firmware

CVE-2026-4503

Unauthenticated Insecure Direct Object Reference (IDOR) Vulnerability in Langflow Desktop Image Download Endpoint

IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Ibm Langflow

Products

Langflow Desktop Langflow Desktop

CVE-2026-4502

Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API

IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm Langflow

Products

Langflow Desktop Langflow Desktop

CVE-2026-3346

Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm Langflow

Products

Langflow Desktop Langflow Desktop

CVE-2026-3340

Server-Side Request Forgery (SSRF) in Langflow URL Component

IBM Langflow Desktop 1.0.0 through 1.8.4 IBM Langflow is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm Langflow

Products

Langflow Desktop Langflow Desktop

CVE-2026-3345

Path Traversal and Arbitrary File Write Vulnerability in IBM Langflow Desktop API v2 File Upload Endpoint

IBM Langflow Desktop <=1.8.4 Langflow could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm Langflow

Products

Langflow Desktop Langflow Desktop

CVE-2026-6543

Authenticated Remote Code Execution Vulnerability in Langflow Code Validation Endpoint

IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Ibm Langflow

Products

Langflow Desktop Langflow Desktop

CVE-2026-8264

Tenda AC6 httpd WifiApScan formWifiApScan os command injection

A weakness has been identified in Tenda AC6 15.03.06.23. Affected by this vulnerability is the function formWifiApScan of the file /goform/WifiApScan of the component httpd. Executing a manipulation of the argument wl2g.public.country/wl5g.public.country can lead to os command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

CVSS 4.0 · 5.3 Medium EPSS 3.2% KEV · Not listed

Vendors

Tenda

Products

Ac6 Ac6 Firmware

CVE-2026-8265

Tenda AC6 httpd getLogFile get_log_file os command injection

A security vulnerability has been detected in Tenda AC6 15.03.06.23. Affected by this issue is the function get_log_file of the file /goform/getLogFile of the component httpd. The manipulation of the argument wans.flag leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.

CVSS 4.0 · 5.1 Medium EPSS 4.8% KEV · Not listed

Vendors

Tenda

Products

Ac6 Ac6 Firmware

CVE-2026-41519

Weblate's API Token Not Invalidated on Password Change

Weblate is a web based localization tool. Prior to version 5.17.1, when a user changes their password, browser sessions are correctly invalidated via "cycle_session_keys()", but DRF API tokens ("wlu_*" prefix) stored in "authtoken_token" are not revoked. This issue has been patched in version 5.17.1.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed

Vendors

Weblate

Products

Weblate

CVE-2026-8233

Dotouch XproUPF access control

A vulnerability was determined in Dotouch XproUPF 2.0.0-release-088aa7c4. Affected is an unknown function of the component UPF. This manipulation causes improper access controls. A high degree of complexity is needed for the attack. The exploitability is told to be difficult. The vendor was contacted early about this disclosure.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Dotouch

Products

Xproupf

CVE-2026-31835

Vaultwarden WebAuthn credential metadata tampered before signature verification

Vaultwarden is a Bitwarden-compatible server written in Rust. In versions 1.35.4 and earlier, the WebAuthn authentication flow in `validate_webauthn_login()` updates persistent credential metadata (1backup_eligible1 and 1backup_state flags1) based on unverified `authenticatorData` before signature validation is performed. An attacker who knows a user's password but cannot produce a valid WebAuthn signature can permanently modify the stored backup flags for that user's credential. If signature verification fails, the database update is not rolled back. This can result in a persistent denial of service of WebAuthn two-factor authentication for affected credentials. This issue has been fixed in version 1.35.5.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Dani-garcia

Products

Vaultwarden

CVE-2025-13480

Incorrect authorization in Fudo Enterprise

Fudo Enterprise in versions from 5.5.0 through 5.6.2 allows low privileged users to access certain administrator-only resources via improperly protected API endpoints. This includes sensitive information such as system logs and parts of system configuration settings. This vulnerability has been fixed in version 5.6.3

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed

Vendors

Fudo Security Fudosecurity

Products

Fudo Enterprise Fudo Enterprise