CVE-2021-30638

Name: CVE-2021-30638
Creator: NVD / NIST
Published: 2021-04-27T19:15:07.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 6.56%

Last modified Jun 17, 2026

CVE-2021-30638 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 6.56% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

6.56%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apache	Tapestry	>= 5.4.0, < 5.6.4
Apache	Tapestry	>= 5.7.0, < 5.7.2

References

http://www.openwall.com/lists/oss-security/2021/04/27/3Mailing List, Third Party Advisory
https://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3EMailing List, Vendor Advisory
https://security.netapp.com/advisory/ntap-20210528-0004/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-491/Third Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2021/04/27/3Mailing List, Third Party Advisory
https://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3EMailing List, Vendor Advisory
https://security.netapp.com/advisory/ntap-20210528-0004/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-491/Third Party Advisory, VDB Entry

Timeline

Published: Apr 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30638?

How severe is CVE-2021-30638?

CVE-2021-30638 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30638?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30638?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST