What’s Vulnerable › Vulnerabilities

CVE-2021-30638: An Information Disclosure due to insufficient input validation exists in Apache Tapestry 5.4.0 and later

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-27 · updated 2026-06-17
• Weakness: CWE-200

Description

Information Exposure vulnerability in context asset handling of Apache Tapestry allows an attacker to download files inside WEB-INF if using a specially-constructed URL. This was caused by an incomplete fix for CVE-2020-13953. This issue affects Apache Tapestry Apache Tapestry 5.4.0 version to Apache Tapestry 5.6.3; Apache Tapestry 5.7.0 version and Apache Tapestry 5.7.1.

Affected products

• Apache Software Foundation Apache Tapestry: from 5.4.0 before 5.6.4; from 5.7.0 before 5.7.2 — fixed in 5.6.4, 5.7.2

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Tapestry 5.6.4, 5.7.2. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2021/04/27/3
• https://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3E
• https://security.netapp.com/advisory/ntap-20210528-0004/
• https://www.zerodayinitiative.com/advisories/ZDI-21-491/
• http://www.openwall.com/lists/oss-security/2021/04/27/3
• https://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3E
• https://security.netapp.com/advisory/ntap-20210528-0004/
• https://www.zerodayinitiative.com/advisories/ZDI-21-491/

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