Which versions of anstream are affected by GHSA-2RXC-GJRP-VJHX?

anstream (rust) versions < 0.6.8 is affected.

Is there a fix for GHSA-2RXC-GJRP-VJHX?

Yes. GHSA-2RXC-GJRP-VJHX is fixed in 0.6.8. Upgrade to this version or later.

Is GHSA-2RXC-GJRP-VJHX exploitable, and should I be worried?

Whether GHSA-2RXC-GJRP-VJHX 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-2RXC-GJRP-VJHX 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-2RXC-GJRP-VJHX in anstream

Q: What is GHSA-2RXC-GJRP-VJHX?

GHSA-2RXC-GJRP-VJHX is a medium-severity security vulnerability in anstream (rust), affecting versions < 0.6.8. It is fixed in 0.6.8.

Q: Is there a fix for GHSA-2RXC-GJRP-VJHX?

Yes. GHSA-2RXC-GJRP-VJHX is fixed in 0.6.8. Upgrade to this version or later.

Q: Is GHSA-2RXC-GJRP-VJHX exploitable, and should I be worried?

Whether GHSA-2RXC-GJRP-VJHX 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-2RXC-GJRP-VJHX 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-2RXC-GJRP-VJHX?

Upgrade anstream to 0.6.8 or later.

GHSA-2RXC-GJRP-VJHX

GHSA-2RXC-GJRP-VJHX is a medium-severity security vulnerability in anstream (rust), affecting versions < 0.6.8. It is fixed in 0.6.8.

Does this CVE actually affect you?

Kodem shows which CVEs are reachable and running in your applications, so you fix what's exploitable, not just what's listed.

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Runtime intelligence, not another scanner.

Summary

Unsoundness in anstream

When given a valid UTF8 string "ö\x1b😀", the function in crates/anstream/src/adapter/strip.rs will be confused. The UTF8 bytes are \xc3\xb6 then \x1b then \xf0\x9f\x98\x80.

When looping over "non-printable bytes" \x1b\xf0 will be considered as some non-printable sequence.

This will produce a broken str from the incorrectly segmented bytes via str::from_utf8_unchecked, and that should never happen.

Full credit goes to @Ralith who reviewed this code and asked @burakemir to follow up.

Impact

Affected versions

anstream (< 0.6.8)

Security releases

anstream → 0.6.8 (rust)

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 anstream to 0.6.8 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-2RXC-GJRP-VJHX? GHSA-2RXC-GJRP-VJHX is a medium-severity security vulnerability in anstream (rust), affecting versions < 0.6.8. It is fixed in 0.6.8.
Which versions of anstream are affected by GHSA-2RXC-GJRP-VJHX? anstream (rust) versions < 0.6.8 is affected.
Is there a fix for GHSA-2RXC-GJRP-VJHX? Yes. GHSA-2RXC-GJRP-VJHX is fixed in 0.6.8. Upgrade to this version or later.
Is GHSA-2RXC-GJRP-VJHX exploitable, and should I be worried? Whether GHSA-2RXC-GJRP-VJHX 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-2RXC-GJRP-VJHX 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-2RXC-GJRP-VJHX? Upgrade anstream to 0.6.8 or later.