WeblateOrg vulnerabilities

CVE-2026-50127 Medium · 5.9 CWE-918 Jun 10, 2026

Weblate SSRF: outbound URL guard misses the NAT64 well-known prefix (64:ff9b::/96)

Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCS_RESTRICT_PRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions. This issue has been patched in version 2026.6.

CVE-2026-45106 Medium · 4.6 CWE-79 Jun 10, 2026

Weblate: Stored HTML injection in editor search preview

Weblate is a web based localization tool. Prior to version 2026.5, Weblate's live search preview renders unit source and context as HTML without escaping. Any contributor whose content reaches those fields stores HTML and CSS that runs inside the authenticated editor of every user who runs a matching search. This issue has been patched in version 2026.5.

CVE-2026-42150 Medium · 4.8 CWE-79 May 8, 2026

wlc: print_html outputs API data without HTML escaping, enabling stored XSS

wlc is a Weblate command-line client using Weblate's REST API. Prior to version 2.0.0, the HTML output format in wlc embeds API response data into HTML without escaping, allowing cross-site scripting when the output is rendered in a browser. This issue has been patched in version 2.0.0.

CVE-2026-44264 Medium · 4.3 CWE-80 May 7, 2026

Weblate is vulnerable to XSS via crafted Markdown

Weblate is a web based localization tool. Prior to version 5.17.1, the Markdown renderer used in user comments and other user-provided content didn't properly sanitize some attributes. This issue has been patched in version 5.17.1.

CVE-2026-44263 Medium · 4.3 CWE-203 May 7, 2026

Weblate: Private Translation Enumeration via Screenshot API

Weblate is a web based localization tool. Prior to version 5.17.1, the screenshots, tasks, and component link API allowed for the enumeration of translations in a project inaccessible to the user. This issue has been patched in version 5.17.1.

CVE-2026-41654 High · 8.1 CWE-20 May 7, 2026

Weblate is Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url

Weblate is a web based localization tool. Prior to version 5.17.1, an authenticated user with project.add permission (default on hosted Weblate SaaS and for any user holding an active billing/trial plan) can import a crafted project backup ZIP whose components/<name>.json contains an attacker-chosen repo URL pointing at a private address (e.g. http://127.0.0.1:9999/) or using a non-allow-listed scheme (e.g. file://, git://). Weblate persists the component via Component.objects.bulk_create([component])[0], which bypasses Django's full_clean() and therefore never runs the validate_repo_url validator. The URL is subsequently written verbatim into .git/config by configure_repo(pull=False). This issue has been patched in version 5.17.1.

CVE-2026-41519 Medium · 5.4 CWE-613 May 7, 2026

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.

CVE-2026-40256 Medium · 5.0 CWE-22 Apr 15, 2026

Weblate: Prefix-Based Repository Boundary Check Bypass via Symlink/Junction Path Prefix Collision

Weblate is a web based localization tool. In versions prior to 5.17, repository-boundary validation relies on string prefix checks on resolved absolute paths. In multiple code paths, the check uses startswith against the repository root path. This is not path-segment aware and can be bypassed when the external path shares the same string prefix as the repository path (for example, repo and repo_outside). This issue has been fixed in version 5.17.

CVE-2026-39845 Medium · 4.1 CWE-918 Apr 15, 2026

Weblate: SSRF via the webhook add-on using unprotected fetch_url()

Weblate is a web based localization tool. In versions prior to 5.17, the webhook add-on did not utilize existing SSRF protections. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can disable the webhook add-on as a workaround.

CVE-2026-34393 High · 8.8 CWE-269 Apr 15, 2026

Weblate: Privilege escalation in the user API endpoint

Weblate is a web based localization tool. In versions prior to 5.17, the user patching API endpoint didn't properly limit the scope of edits. This issue has been fixed in version 5.17.

CVE-2026-34244 Medium · 5.0 CWE-200 Apr 15, 2026

Weblate: SSRF via Project-Level Machinery Configuration

Weblate is a web based localization tool. In versions prior to 5.17, a user with the project.edit permission (granted by the per-project "Administration" role) can configure machine translation service URLs pointing to arbitrary internal network addresses. During configuration validation, Weblate makes an HTTP request to the attacker-controlled URL and reflects up to 200 characters of the response body back to the user in an error message. This constitutes a Server-Side Request Forgery (SSRF) with partial response read. This issue has been fixed in version 5.17. If developers are unable to immediately upgrade, they can limit available machinery services via WEBLATE_MACHINERY setting.

CVE-2026-34242 High · 7.7 CWE-22 Apr 15, 2026

Weblate: Arbitrary File Read via Symlink

Weblate is a web based localization tool. In versions prior to 5.17, the ZIP download feature didn't verify downloaded files, potentially following symlinks outside the repository. This issue has been fixed in version 5.17.

CVE-2026-33440 Medium · 5.0 CWE-918 Apr 15, 2026

Weblate: Authenticated SSRF via redirect bypass of ALLOWED_ASSET_DOMAINS in screenshot URL uploads

Weblate is a web based localization tool. In versions prior to 5.17, the ALLOWED_ASSET_DOMAINS setting applied only to the first issued requests and didn't restrict possible redirects. This issue has been fixed in version 5.17.

CVE-2026-33435 High · 8.0 CWE-23 Apr 15, 2026

Weblate: Remote code execution during backup restoration

Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can limit the scope of the vulnerability by restricting access to the project backup, as it is only accessible to users who can create projects.

CVE-2026-33220 Medium · 6.8 CWE-22 Apr 15, 2026

Weblate: JavaScript localization CDN add-on allows arbitrary local file read outside the repository

Weblate is a web based localization tool. In versions prior to 5.17, the translation memory API exposed unintended endpoints, which in turn didn't perform proper access control. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can disable this feature as the CDN add-on is not enabled by default.

CVE-2026-33214 Medium · 4.3 CWE-862 Apr 15, 2026

Weblate has improper access control for the translation memory API

Weblate is a web based localization tool. In versions prior to 5.17, the translation memory API exposed unintended endpoints, which in turn didn't enforce proper access control. This issue has been fixed in version 5.17. If users are unable to update immediately, they can work around this issue by blocking access to /api/memory/ in the HTTP server, which removes access to this feature.

CVE-2026-33212 Low · 3.1 CWE-284 Apr 15, 2026

Weblate: Improper access control for pending tasks in API

Weblate is a web based localization tool. In versions prior to 5.17, the tasks API didn't verify user access for pending tasks. This could expose logs of in-progress operations to users who don't have access to given scope. The attacker needs to brute-force the random UUID of the task, so exploiting this is unlikely with the default API rate limits. This issue has been fixed in version 5.17.

CVE-2026-27457 Medium · 4.3 CWE-862 Feb 26, 2026

Weblate: Missing access control for the AddonViewSet API exposes all addon configurations

Weblate is a web based localization tool. Prior to version 5.16.1, the REST API's `AddonViewSet` (`weblate/api/views.py`, line 2831) uses `queryset = Addon.objects.all()` without overriding `get_queryset()` to scope results by user permissions. This allows any authenticated user (or anonymous users if `REQUIRE_LOGIN` is not set) to list and retrieve ALL addons across all projects and components via `GET /api/addons/` and `GET /api/addons/{id}/`. Version 5.16.1 fixes the issue.

CVE-2026-24126 Critical · 9.1 CWE-88 Feb 18, 2026

Weblate has an argument injection in management console

Weblate is a web based localization tool. Prior to 5.16.0, the SSH management console did not validate the passed input while adding the SSH host key, which could lead to an argument injection to `ssh-add`. Version 5.16.0 fixes the issue. As a workaround, properly limit access to the management console.

CVE-2026-23535 High · 8.0 CWE-22 Jan 16, 2026

wlc Path traversal: Unsanitized API slugs in download command

wlc is a Weblate command-line client using Weblate's REST API. Prior to 1.17.2, the multi-translation download could write to an arbitrary location when instructed by a crafted server. This vulnerability is fixed in 1.17.2.

CVE-2026-21889 High · 7.5 CWE-284 Jan 14, 2026

Weblate leaks information via screenshots

Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.

CVE-2026-22251 Medium · 5.5 CWE-200 Jan 12, 2026

wlc may leak API keys due to an insecure API key configuration

wlc is a Weblate command-line client using Weblate's REST API. Prior to 1.17.0, wlc supported providing unscoped API keys in the setting. This practice was discouraged for years, but the code was never removed. This might cause the API key to be leaked to different servers.

CVE-2026-22250 Medium · 5.5 CWE-295 Jan 12, 2026

wlc can skip SSL verification

wlc is a Weblate command-line client using Weblate's REST API. Prior to 1.17.0, the SSL verification would be skipped for some crafted URLs. This vulnerability is fixed in 1.17.0.

CVE-2025-68398 Critical · 9.1 CWE-20 Dec 18, 2025

Weblate has git config file overwrite vulnerability that leads to remote code execution

Weblate is a web based localization tool. In versions prior to 5.15.1, it was possible to overwrite Git configuration remotely and override some of its behavior. Version 5.15.1 fixes the issue.

CVE-2025-68279 Medium · 6.5 CWE-22 Dec 18, 2025

Weblate has an arbitrary file read via symbolic links

Weblate is a web based localization tool. In versions prior to 5.15.1, it was possible to read arbitrary files from the server file system using crafted symbolic links in the repository. Version 5.15.1 fixes the issue.