Summary
Information Disclosure Vulnerability in Privacy Center of SERVERSIDEFIDESAPIURL
SERVER_SIDE_FIDES_API_URL 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 an unauthenticated attacker to make a HTTP GET request from the Privacy Center that discloses the value of this server-side URL.
Workarounds
There are no workarounds.
Proof of Concept
Set the value of the environment variable
FIDES_PRIVACY_CENTER__SERVER_SIDE_FIDES_API_URLof your Fides Privacy Center container before start-up to a private value such ashttps://some.private.domain.name/api/v1and start the Privacy Center application.Once the application is up, perform a HTTP GET request of the Privacy Center's main page e.g.
https://privacy.example.com. The value ofSERVER_SIDE_FIDES_API_URLis returned in the response's body.
~ ❯ curl -s https://privacy.example.com/ | \
grep '__NEXT_DATA__' | \
sed 's/.*<script id="__NEXT_DATA__" type="application\/json">//;s/<\/script>.*//' | \
jq '.props.serverEnvironment.settings.SERVER_SIDE_FIDES_API_URL'
"https://some.private.domain.name/api/v1"
Impact
Disclosure of server-side configuration giving an attacker information on server-side ports, private IP addresses, and/or private domain names.
CVE-2024-31223 has a CVSS score of 5.3 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (2.39.2); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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The vulnerability has been patched in Fides version 2.39.2. Users are advised to upgrade to this version or later to secure their systems against this threat.
Frequently Asked Questions
- What is CVE-2024-31223? CVE-2024-31223 is a medium-severity security vulnerability in ethyca-fides (pip), affecting versions >= 2.19.0, < 2.39.2. It is fixed in 2.39.2.
- How severe is CVE-2024-31223? CVE-2024-31223 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of ethyca-fides are affected by CVE-2024-31223? ethyca-fides (pip) versions >= 2.19.0, < 2.39.2 is affected.
- Is there a fix for CVE-2024-31223? Yes. CVE-2024-31223 is fixed in 2.39.2. Upgrade to this version or later.
- Is CVE-2024-31223 exploitable, and should I be worried? Whether CVE-2024-31223 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2024-31223 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2024-31223? Upgrade
ethyca-fidesto 2.39.2 or later.