Summary
matrix-sdk 0.6.0 logs access tokens
When sending Matrix requests using an affected version of matrix-sdk in an application that writes logs using tracing-subscriber (in a way that includes fields of tracing spans such as tracing_subscribers default text output from the fmt module), these logs will contain the user's access token.
Impact
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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Frequently Asked Questions
- What is GHSA-FC4H-XCF3-QJ5F? GHSA-FC4H-XCF3-QJ5F is a medium-severity security vulnerability in matrix-sdk (rust), affecting versions >= 0.6.0, < 0.6.2. It is fixed in 0.6.2.
- Which versions of matrix-sdk are affected by GHSA-FC4H-XCF3-QJ5F? matrix-sdk (rust) versions >= 0.6.0, < 0.6.2 is affected.
- Is there a fix for GHSA-FC4H-XCF3-QJ5F? Yes. GHSA-FC4H-XCF3-QJ5F is fixed in 0.6.2. Upgrade to this version or later.
- Is GHSA-FC4H-XCF3-QJ5F exploitable, and should I be worried? Whether GHSA-FC4H-XCF3-QJ5F 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-FC4H-XCF3-QJ5F 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-FC4H-XCF3-QJ5F? Upgrade
matrix-sdkto 0.6.2 or later.