What is CVE-2025-2792?

CVE-2025-2792 is a low-severity inefficient regular expression (ReDoS) vulnerability in @mozilla/readability (npm), affecting versions < 0.6.0. It is fixed in 0.6.0. A regular expression with worst-case exponential or polynomial matching time is applied to untrusted input, causing excessive CPU use.

Which versions of @mozilla/readability are affected by CVE-2025-2792?

@mozilla/readability (npm) versions < 0.6.0 is affected.

Is there a fix for CVE-2025-2792?

Yes. CVE-2025-2792 is fixed in 0.6.0. Upgrade to this version or later.

Is CVE-2025-2792 exploitable, and should I be worried?

Whether CVE-2025-2792 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 CVE-2025-2792 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.

CVE-2025-2792 in @mozilla/readability

Q: Which versions of @mozilla/readability are affected by CVE-2025-2792?

@mozilla/readability (npm) versions < 0.6.0 is affected.

Q: Is there a fix for CVE-2025-2792?

Yes. CVE-2025-2792 is fixed in 0.6.0. Upgrade to this version or later.

Q: Is CVE-2025-2792 exploitable, and should I be worried?

Whether CVE-2025-2792 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 CVE-2025-2792 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 CVE-2025-2792?

Upgrade @mozilla/readability to 0.6.0 or later.

CVE-2025-2792

CVE-2025-2792 is a low-severity inefficient regular expression (ReDoS) vulnerability in @mozilla/readability (npm), affecting versions < 0.6.0. It is fixed in 0.6.0.

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

@mozilla/readability Denial of Service through Regex

Specially crafted titles may have caused a regular expression to excessively backtrack and cause a local denial of service.

Additional Details are available at Bugzilla

Credit: DayShift

Impact

A regular expression with worst-case exponential or polynomial matching time is applied to untrusted input, causing excessive CPU use. Typical impact: denial of service when input is crafted to trigger backtracking.

Affected versions

@mozilla/readability (< 0.6.0)

Security releases

@mozilla/readability → 0.6.0 (npm)

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 @mozilla/readability to 0.6.0 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 CVE-2025-2792? CVE-2025-2792 is a low-severity inefficient regular expression (ReDoS) vulnerability in @mozilla/readability (npm), affecting versions < 0.6.0. It is fixed in 0.6.0. A regular expression with worst-case exponential or polynomial matching time is applied to untrusted input, causing excessive CPU use.
Which versions of @mozilla/readability are affected by CVE-2025-2792? @mozilla/readability (npm) versions < 0.6.0 is affected.
Is there a fix for CVE-2025-2792? Yes. CVE-2025-2792 is fixed in 0.6.0. Upgrade to this version or later.
Is CVE-2025-2792 exploitable, and should I be worried? Whether CVE-2025-2792 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-2025-2792 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-2025-2792? Upgrade @mozilla/readability to 0.6.0 or later.