What’s Vulnerable › Vulnerabilities

CVE-2023-49733: Apache Cocoon's StreamGenerator is vulnerable to XXE injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-30 · updated 2026-06-17
• Weakness: CWE-611

Description

Improper Restriction of XML External Entity Reference vulnerability in Apache Cocoon.This issue affects Apache Cocoon: from 2.2.0 before 2.3.0. Users are recommended to upgrade to version 2.3.0, which fixes the issue.

Affected products

• Apache Software Foundation Apache Cocoon: from 2.2.0 before 2.3.0 — fixed in 2.3.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Cocoon 2.3.0. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2023/11/30/5
• https://lists.apache.org/thread/t87nntzt6dxw354zbqr9k7l7o1x8gq11
• http://www.openwall.com/lists/oss-security/2023/11/30/5
• https://lists.apache.org/thread/t87nntzt6dxw354zbqr9k7l7o1x8gq11

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