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CVE-2026-45205

26
FAUCET Score

Uncontrolled Recursion vulnerability in Apache Commons. When processing an untrusted configuration file, Commons Configuration will throw a StackOverflowError for YAML input with cycles. This issue affects Apache Commons: from 2.2 before 2.15.0. Users are recommended to upgrade to version 2.15.0, which fixes the issue.

First published: May 14, 2026Last modified: May 14, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2, < 2.15.0CPE matchmatch criteria
cpe:2.3:a:apache:commons_configuration:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 24th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.apache.commons:commons-configuration2Fixed in: 2.15.0
apachevendor investigatingvia vendor_rss
View patch

Vendor Advisories (2)

mavenGHSA-337m-mw94-2v6gmedium

Apache Commons Configuration: StackOverflowError for YAML input with cycles

May 14, 2026
apacheapache:www.mail-archive.com/[email protected]/msg11091.htmlLOW

CVE-2026-45205: Apache Commons Configuration: StackOverflowError for YAML input with cycles

May 14, 2026

References

openwall.com / lists/oss-security/2026/05/14/5
Mailing ListThird Party Advisory
github.com / apache/commons-configuration/pull/634
Issue TrackingPatch
lists.apache.org / thread/q3q3j10ohcqhs6o0rg1v7kz6kk27vtkk
Mailing ListVendor Advisory