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CVE-2023-28118

23
FAUCET Score

CVE-2023-28118 is a high-severity denial-of-service vulnerability affecting kaml, a YAML parsing library for kotlinx.serialization, prior to version 0.53.0. Untrusted YAML input containing anchors and aliases can lead to excessive memory consumption and application crashes. The vulnerability has a CVSS score of 7.5, indicating a network-based attack with low complexity and high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in the KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.53.0CPE matchmatch criteria
cpe:2.3:a:kaml_project:kaml:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 34th percentile among its peer group of 51,506 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: com.charleskorn.kaml:kamlFixed in: 0.53.0

Vendor Advisories (1)

mavenGHSA-c24f-2j3g-rg48high

kaml has potential denial of service while parsing input with anchors and aliases

Mar 20, 2023

References

github.com / charleskorn/kaml/commit/5f82a2d7e00bfc307afca05d1dc4d7c50593531a
Patch
github.com / charleskorn/kaml/releases/tag/0.53.0
Release Notes
github.com / charleskorn/kaml/security/advisories/GHSA-c24f-2j3g-rg48
Vendor Advisory