What is CVE-2025-53623?

CVE-2025-53623 is a critical-severity OS command injection vulnerability in job-iteration (rubygems), affecting versions < 1.11. It is fixed in 1.11. Untrusted input reaches a shell command, allowing arbitrary commands to run on the host.

Which versions of job-iteration are affected by CVE-2025-53623?

job-iteration (rubygems) versions < 1.11 is affected.

Is there a fix for CVE-2025-53623?

Yes. CVE-2025-53623 is fixed in 1.11. Upgrade to this version or later.

Is CVE-2025-53623 exploitable, and should I be worried?

Whether CVE-2025-53623 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-2025-53623 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-2025-53623?

Upgrade job-iteration to 1.11 or later.

CVE-2025-53623 in job-iteration

Q: Which versions of job-iteration are affected by CVE-2025-53623?

job-iteration (rubygems) versions < 1.11 is affected.

Q: Is there a fix for CVE-2025-53623?

Yes. CVE-2025-53623 is fixed in 1.11. Upgrade to this version or later.

Q: Is CVE-2025-53623 exploitable, and should I be worried?

Whether CVE-2025-53623 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-2025-53623 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-2025-53623?

Upgrade job-iteration to 1.11 or later.

Summary

Job Iteration API is vulnerable to OS Command Injection attack through its CsvEnumerator class

Workarounds

Users can mitigate the risk by avoiding the use of untrusted input in the CsvEnumerator class and ensuring that any file paths are properly sanitized and validated before being passed to the class methods. Users should avoid calling count_of_rows_in_file on enumerators constructed with untrusted CSV filenames.

Impact

There is an arbitrary code execution vulnerability in the CsvEnumerator class of the job-iteration repository. This vulnerability can be exploited by an attacker to execute arbitrary commands on the system where the application is running, potentially leading to unauthorized access, data leakage, or complete system compromise.

Untrusted input reaches a shell command, allowing arbitrary commands to run on the host. Typical impact: code execution in the application's environment.

Affected versions

job-iteration (< 1.11)

Security releases

job-iteration → 1.11 (rubygems)

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

Issue is fixed in versions 1.11.0 and above.

Frequently Asked Questions

What is CVE-2025-53623? CVE-2025-53623 is a critical-severity OS command injection vulnerability in job-iteration (rubygems), affecting versions < 1.11. It is fixed in 1.11. Untrusted input reaches a shell command, allowing arbitrary commands to run on the host.
Which versions of job-iteration are affected by CVE-2025-53623? job-iteration (rubygems) versions < 1.11 is affected.
Is there a fix for CVE-2025-53623? Yes. CVE-2025-53623 is fixed in 1.11. Upgrade to this version or later.
Is CVE-2025-53623 exploitable, and should I be worried? Whether CVE-2025-53623 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-2025-53623 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-2025-53623? Upgrade job-iteration to 1.11 or later.