What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-11 · updated 2026-06-17
• Weakness: CWE-674

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.

Affected products

• Apache Software Foundation Apache Commons Lang: from 2.0 before 2.6; from 3.0 before 3.18.0 — fixed in 2.6, 3.18.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Commons Lang 2.6, 3.18.0. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/bgv0lpswokgol11tloxnjfzdl7yrc1g1
• http://www.openwall.com/lists/oss-security/2025/07/11/1
• https://lists.debian.org/debian-lts-announce/2025/08/msg00000.html
• https://lists.debian.org/debian-lts-announce/2025/08/msg00026.html
• https://lists.debian.org/debian-lts-announce/2025/09/msg00032.html
• https://lists.debian.org/debian-lts-announce/2025/09/msg00036.html

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