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CVE-2022-34169— Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets

Quick assessment

Affected
Apache Software Foundation Apache Xalan-J
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Xalan是美国阿帕奇（Apache）基金会的开源软件库。 Apache Xalan Java XSLT库存在输入验证错误漏洞，该漏洞源于在处理恶意的XSLT样式表时，存在整数截断问题。这可以用来破坏由内部XSLTC编译器生成的Java类文件并执行任意的Java字节码。

AI Predicted 9.8 Difficulty: Moderate EPSS 81.04% · P100

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Xalan-J Xalan-J≤ 2.7.2 affected
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I. Basic Information for CVE-2022-34169

Vulnerability Information
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Vulnerability Title
Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets
Source: CVE Program / CVE List V5
Vulnerability Description
The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode. Users are recommended to update to version 2.7.3 or later. Note: Java runtimes (such as OpenJDK) include repackaged copies of Xalan.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Xalan 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Xalan是美国阿帕奇（Apache）基金会的开源软件库。 Apache Xalan Java XSLT库存在输入验证错误漏洞，该漏洞源于在处理恶意的XSLT样式表时，存在整数截断问题。这可以用来破坏由内部XSLTC编译器生成的Java类文件并执行任意的Java字节码。
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
Apache Software Foundation Apache Xalan-J Xalan-J ~ 2.7.2 -

II. Public POCs for CVE-2022-34169

# POC Description Source Link Shenlong Link
1 https://nvd.nist.gov/vuln/detail/CVE-2022-34169 https://github.com/bor8/CVE-2022-34169 POC Details
2 cve-2022-34169 延伸出的Jdk Xalan的payload自动生成工具，可根据不同的Jdk生成出其所对应的xslt文件 https://github.com/flowerwind/AutoGenerateXalanPayload POC Details
3 A PoC for CVE-2022-34169, for the SU_PWN challenge from SUCTF 2025 https://github.com/Disnaming/CVE-2022-34169 POC Details
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III. Intelligence Information for CVE-2022-34169

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Vendor Advisories for CVE-2022-34169 (7)

Exploits & Public PoCs for CVE-2022-34169 (1)

Mailing List Discussions for CVE-2022-34169 (15)

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation

V. Comments for CVE-2022-34169

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