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Vulnerability record · CVE-2021-40146 · published 11 September 2021

CVE-2021-40146: Apache any23 vulnerability

Apache · Any23

A Remote Code Execution (RCE) vulnerability was discovered in the Any23 YAMLExtractor.java file and is known to affect Any23 versions < 2.5. RCE vulnerabilities allow a malicious actor to execute any code of their choice on a remote machine over LAN, WAN, or internet. RCE belongs to the broader class of arbitrary code execution (ACE) vulnerabilities.

9.8 CVSS 3.1 Critical EPSS 5.7% · top 7.3%
9.8CVSS 3.1 base score, v2 10.0
5.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A Remote Code Execution (RCE) vulnerability was discovered in the Any23 YAMLExtractor.java file and is known to affect Any23 versions < 2.5. RCE vulnerabilities allow a malicious actor to execute any code of their choice on a remote machine over LAN, WAN, or internet. RCE belongs to the broader class of arbitrary code execution (ACE) vulnerabilities.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2021/09/11/2 Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/r7c521ed85c7ae1bad4fdf95b459f2aaa8a67eae338636b7b7ec35d86%40%3Cannounce.apache.org% Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2021/09/11/2 Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/r7c521ed85c7ae1bad4fdf95b459f2aaa8a67eae338636b7b7ec35d86%40%3Cannounce.apache.org% Mailing ListVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2022-25312Apache any23 xml external entity (xxe) vulnerabilityAn XML external entity (XXE) injection vulnerability was discovered in the Any23 RDFa XSLTStylesheet extractor and is known to affect Any23 versions …EPSS 2.9%9.1CVE-2021-38555Apache any23 xml external entity (xxe) vulnerabilityAn XML external entity (XXE) injection vulnerability was discovered in the Any23 StreamUtils.java file and is known to affect Any23 versions < 2.5. X…EPSS 2.8%5.3CVE-2023-34150Apache any23 improper input validation vulnerability** UNSUPPORTED WHEN ASSIGNED ** Use of TikaEncodingDetector in Apache Any23 can cause excessive memory usage.EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2021-40146), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.