PYSEC-2026-1348 Fides' Admin UI User Password Change Does Not Invalidate Current Session

Summary Admin UI user password changes in Fides do not invalidate active user sessions, creating a vulnerability chaining opportunity where attackers who have obtained session tokens through other attack vectors such as XSS can maintain access even after password reset. This issue is not directly...

PYSEC-2026-1349 Password Policy Bypass Vulnerability in Fides Webserver User Accept Invite API

Summary The user invite acceptance API endpoint lacks server-side password policy enforcement, allowing users to set arbitrarily weak passwords by bypassing client-side validation. While the UI enforces password complexity requirements, direct API calls can circumvent these checks, enabling the...

Password Policy Bypass Vulnerability in Fides Webserver User Accept Invite API

SummaryThe user invite acceptance API endpoint lacks server-side password policy enforcement, allowing users to set arbitrarily weak passwords by bypassing client-side validation. While the UI enforces password complexity requirements, direct API calls can circumvent these checks, enabling the...

PYSEC-2026-1331 Timing-Based Username Enumeration Vulnerability in Fides Webserver Authentication

A timing-based username enumeration vulnerability has been identified in Fides Webserver authentication. This vulnerability allows an unauthenticated attacker to determine the existence of valid usernames by analyzing the time it takes for the server to respond to login requests. The discrepancy ...

Remote Code Execution Vulnerability via SSTI in Fides Webserver Jinja Email Templating Engine

SummaryThe Email Templating feature uses Jinja2 without proper input sanitization or rendering environment restrictions, allowing for Server-Side Template Injection that grants Remote Code Execution to privileged users. A privileged user refers to an Admin UI user with the default Owner or...

Timing-Based Username Enumeration Vulnerability in Fides Webserver Authentication

A timing-based username enumeration vulnerability has been identified in Fides Webserver authentication. This vulnerability allows an unauthenticated attacker to determine the existence of valid usernames by analyzing the time it takes for the server to respond to login requests. The discrepancy ...

PYSEC-2026-1334 Information Disclosure Vulnerability in Privacy Center of SERVER_SIDE_FIDES_API_URL

SERVERSIDEFIDESAPIURL is a server-side configuration environment variable used by the Fides Privacy Center to communicate with the Fides webserver backend. The value of this variable is a URL which typically includes a private IP address, private domain name, and/or port. This vulnerability allow...

Information Disclosure Vulnerability in Privacy Center of SERVER_SIDE_FIDES_API_URL

SERVERSIDEFIDESAPIURL is a server-side configuration environment variable used by the Fides Privacy Center to communicate with the Fides webserver backend. The value of this variable is a URL which typically includes a private IP address, private domain name, and/or port.This vulnerability allows...

Fides Webserver Logs Hosted Database Password Partial Exposure Vulnerability

The Fides webserver requires a connection to a hosted PostgreSQL database for persistent storage of application data. If the password used by the webserver for this database connection includes special characters such as @ and $, webserver startup fails and the part of the password following the...

PYSEC-2026-1337 Fides Webserver Logs Hosted Database Password Partial Exposure Vulnerability

The Fides webserver requires a connection to a hosted PostgreSQL database for persistent storage of application data. If the password used by the webserver for this database connection includes special characters such as @ and $, webserver startup fails and the part of the password following the...

PYSEC-2026-1344 Fides Server-Side Request Forgery Vulnerability in Custom Integration Upload

Impact The Fides web application allows a custom integration to be uploaded as a ZIP file containing configuration and dataset definitions in YAML format. It was discovered that specially crafted YAML dataset and config files allow a malicious user to perform arbitrary requests to internal system...

Fides Information Disclosure Vulnerability in Config API Endpoint

ImpactThe Fides webserver API allows users to retrieve its configuration using the GET api/v1/config endpoint. The configuration data is filtered to suppress most sensitive configuration information before it is returned to the user, but even the filtered data contains information about the...

PYSEC-2026-1340 Fides JavaScript Injection Vulnerability in Privacy Center URL

Impact The Fides web application allows users to edit consent and privacy notices such as cookie banners. These privacy notices can then be served by other integrated websites, for example in cookie consent banners. One of the editable fields is a privacy policy URL and this input was found to no...

PYSEC-2026-1333 Ethyca Fides HTML Injection Vulnerability in HTML-Formatted DSR Packages

Impact The Fides web application allows data subject users to request access to their personal data. If the request is approved by the data controller user operating the Fides web application, the data subject's personal data can then retrieved from connected systems and data stores before being...

Remote Code Execution in Custom Integration Upload

ImpactThe Fides webserver API allows custom integrations to be uploaded as a ZIP file. This ZIP file must contain YAML files, but Fides can be configured to also accept the inclusion of custom Python code in it. The custom code is executed in a restricted, sandboxed environment, but the sandbox c...

PYSEC-2026-1345 Remote Code Execution in Custom Integration Upload

Impact The Fides webserver API allows custom integrations to be uploaded as a ZIP file. This ZIP file must contain YAML files, but Fides can be configured to also accept the inclusion of custom Python code in it. The custom code is executed in a restricted, sandboxed environment, but the sandbox...

Fides Webserver Vulnerable to Zip Bomb File Uploads

ImpactThe Fides webserver is vulnerable to a type of Denial of Service DoS attack. Attackers can exploit a weakness in the connector template upload feature to upload a malicious zip bomb file, resulting in resource exhaustion and service unavailability for all users of the Fides webserver.This...

PYSEC-2026-1342 Fides Webserver Vulnerable to Zip Bomb File Uploads

Impact The Fides webserver is vulnerable to a type of Denial of Service DoS attack. Attackers can exploit a weakness in the connector template upload feature to upload a malicious zip bomb file, resulting in resource exhaustion and service unavailability for all users of the Fides webserver. This...

PYSEC-2026-1332 Fides Webserver Vulnerable to SVG Bomb File Uploads

Impact The Fides webserver is vulnerable to a type of Denial of Service DoS attack. Attackers can exploit this vulnerability to upload zip files containing malicious SVG bombs similar to a billion laughs attack, causing resource exhaustion in Admin UI browser tabs and creating a persistent denial...

CVE-2026-44541

Fides is an open-source privacy engineering platform. From version 2.33.0 to before version 2.84.5, there is a DOM-based XSS vulnerability in fides.js via the fidesdescription override. This issue has been patched in version 2.84.5...