A Remote Code Execution (RCE) vulnerability exists in Apache Any23 YAMLExtractor.java

published 2021-09-11 5 y ago modified 2026-06-17 4 mo ago also GHSA-99px-7724-484v , EUVD-2021-2023

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 5.7%; EPSS 5.7% chance of exploitation in 30 days, percentile 93%
public exploits: 0; none known

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.

Patch / fix

fixed in 2

maven org.apache.any23:apache-any23 2.5
Apache Software Foundation Apache Any23 2.5

Exploit prediction

5.68% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C
GitHub	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
maven	org.apache.any23:apache-any23	<2.5	2.5

Affected products

Apache Software Foundation Apache Any23

References

lists.apache.org /thread.html/r7c521ed85c7ae1bad4fdf95b459f2aaa8a67eae338636b7b7ec35d86%40%3Cannounce.apache.org%3E
web, mailing-list, vendor-advisory
openwall.com /lists/oss-security/2021/09/11/2
mailing-list, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2021-40146
advisory
github.com /apache/any23
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary