What is GHSA-7VWR-G6PM-9HC8?

GHSA-7VWR-G6PM-9HC8 is a high-severity security vulnerability in fastapi-proxy-lib (pip), affecting versions < 0.1.0. It is fixed in 0.1.0.

How severe is GHSA-7VWR-G6PM-9HC8?

GHSA-7VWR-G6PM-9HC8 has a CVSS score of 7.5 (High). 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 fastapi-proxy-lib are affected by GHSA-7VWR-G6PM-9HC8?

fastapi-proxy-lib (pip) versions < 0.1.0 is affected.

Is there a fix for GHSA-7VWR-G6PM-9HC8?

Yes. GHSA-7VWR-G6PM-9HC8 is fixed in 0.1.0. Upgrade to this version or later.

Is GHSA-7VWR-G6PM-9HC8 exploitable, and should I be worried?

Whether GHSA-7VWR-G6PM-9HC8 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.

What actually determines whether GHSA-7VWR-G6PM-9HC8 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.

GHSA-7VWR-G6PM-9HC8 in fastapi-proxy-lib

Q: How severe is GHSA-7VWR-G6PM-9HC8?

GHSA-7VWR-G6PM-9HC8 has a CVSS score of 7.5 (High). 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.

Q: Which versions of fastapi-proxy-lib are affected by GHSA-7VWR-G6PM-9HC8?

fastapi-proxy-lib (pip) versions < 0.1.0 is affected.

Q: Is there a fix for GHSA-7VWR-G6PM-9HC8?

Yes. GHSA-7VWR-G6PM-9HC8 is fixed in 0.1.0. Upgrade to this version or later.

Q: Is GHSA-7VWR-G6PM-9HC8 exploitable, and should I be worried?

Whether GHSA-7VWR-G6PM-9HC8 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.

Q: What actually determines whether GHSA-7VWR-G6PM-9HC8 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.

Q: How do I fix GHSA-7VWR-G6PM-9HC8?

Upgrade fastapi-proxy-lib to 0.1.0 or later.

Summary

Cookie leakage between different users in fastapi-proxy-lib

It's fixed in `0.1.0`

Workarounds

If you insist 0.0.1:

Do not use ForwardHttpProxy at all.
Do not use ReverseHttpProxy or ReverseWebSocketProxy for any servers that may potentially send a set-cookie response.

However, it's best to upgrade to the latest version.

References

fixed in #10

Impact

In the implementation of version 0.0.1, requests from different user clients are processed using a shared httpx.AsyncClient.

However, one oversight is that the httpx.AsyncClient will persistently store cookies based on the set-cookie response header sent by the target server and share these cookies across different user requests.

This results in a cookie leakage issue among all user clients sharing the same httpx.AsyncClient.

GHSA-7VWR-G6PM-9HC8 has a CVSS score of 7.5 (High). 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 (0.1.0); upgrading removes the vulnerable code path.

Affected versions

fastapi-proxy-lib (< 0.1.0)

Security releases

fastapi-proxy-lib → 0.1.0 (pip)

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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Remediation advice

Upgrade fastapi-proxy-lib to 0.1.0 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is GHSA-7VWR-G6PM-9HC8? GHSA-7VWR-G6PM-9HC8 is a high-severity security vulnerability in fastapi-proxy-lib (pip), affecting versions < 0.1.0. It is fixed in 0.1.0.
How severe is GHSA-7VWR-G6PM-9HC8? GHSA-7VWR-G6PM-9HC8 has a CVSS score of 7.5 (High). 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 fastapi-proxy-lib are affected by GHSA-7VWR-G6PM-9HC8? fastapi-proxy-lib (pip) versions < 0.1.0 is affected.
Is there a fix for GHSA-7VWR-G6PM-9HC8? Yes. GHSA-7VWR-G6PM-9HC8 is fixed in 0.1.0. Upgrade to this version or later.
Is GHSA-7VWR-G6PM-9HC8 exploitable, and should I be worried? Whether GHSA-7VWR-G6PM-9HC8 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 GHSA-7VWR-G6PM-9HC8 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 GHSA-7VWR-G6PM-9HC8? Upgrade fastapi-proxy-lib to 0.1.0 or later.