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CVE-2023-28118— kaml has potential denial of service while parsing input with anchors and aliases

Quick assessment

Affected
charleskorn kaml
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

charleskorn kaml是YAML格式的开源实现，支持kotlinx.serialization。 kaml 0.53.0之前版本存在安全漏洞，该漏洞源于使用锚点和别名解析输入时可能出现拒绝服务。

CVSS 7.5 · High EPSS 0.97% · P61

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2023-28118

Vulnerability Information
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Vulnerability Title
kaml has potential denial of service while parsing input with anchors and aliases
Source: CVE Program / CVE List V5
Vulnerability Description
kaml provides YAML support for kotlinx.serialization. Prior to version 0.53.0, applications that use kaml to parse untrusted input containing anchors and aliases may consume excessive memory and crash. Version 0.53.0 and later default to refusing to parse YAML documents containing anchors and aliases. There are no known workarounds.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
DTD中递归实体索引的不恰当限制(XML实体扩展)
Source: CVE Program / CVE List V5
Vulnerability Title
charleskorn kaml 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
charleskorn kaml是YAML格式的开源实现，支持kotlinx.serialization。 kaml 0.53.0之前版本存在安全漏洞，该漏洞源于使用锚点和别名解析输入时可能出现拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
charleskorn kaml < 0.53.0 -

II. Public POCs for CVE-2023-28118

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III. Intelligence Information for CVE-2023-28118

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Patches & Fixes for CVE-2023-28118 (1)

Vendor Advisories for CVE-2023-28118 (1)

Other References for CVE-2023-28118 (1)

IV. Related Vulnerabilities

Same product: kaml
Same vendor: charleskorn
Same weakness: CWE-776

V. Comments for CVE-2023-28118

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