CVE-2022-34169

CVE-2022-34169 is a high-severity vulnerability in Apache Xalan-java with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-681.

Key facts

• Severity: High (CVSS 3.x base score 7.5)
• EPSS exploit prediction: 18% (97th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-681
• Affected product: Apache Xalan-java
• Published: 2022-07-19
• Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-34169?

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.

How severe is CVE-2022-34169?

CVE-2022-34169 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2022-34169 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-34169?

CVE-2022-34169 primarily affects Apache Xalan-java. In total, 156 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-34169?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-34169 published?

CVE-2022-34169 was published on 2022-07-19 and last updated on 2026-06-17.

References

• http://packetstormsecurity.com/files/168186/Xalan-J-XSLTC-Integer-Truncation.html
• http://www.openwall.com/lists/oss-security/2022/07/19/5
• http://www.openwall.com/lists/oss-security/2022/07/19/6
• http://www.openwall.com/lists/oss-security/2022/07/20/2
• http://www.openwall.com/lists/oss-security/2022/07/20/3
• http://www.openwall.com/lists/oss-security/2022/10/18/2
• http://www.openwall.com/lists/oss-security/2022/11/04/8
• http://www.openwall.com/lists/oss-security/2022/11/07/2
• https://lists.apache.org/thread/12pxy4phsry6c34x2ol4fft6xlho4kyw
• https://lists.apache.org/thread/2qvl7r43wb4t8p9dd9om1bnkssk07sn8
• https://lists.debian.org/debian-lts-announce/2022/10/msg00024.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H4YNJSJ64NPCNKFPNBYITNZU5H3L4D6L/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5OZNAZJ4YHLOKRRRZSWRT5OJ25E4XLM/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3EVGR7FD3ZLV5SBTJXUIDCMSK4QUE2/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KO3DXNKZ4EU3UZBT6AAR4XRKCD73KLMO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3XPOTPPBZIPFBZHQE5E7OW6PDACUMCJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YULPNO3PAWMEQQZV2C54I3H3ZOXFZUTB/
• https://security.gentoo.org/glsa/202401-25
• https://security.netapp.com/advisory/ntap-20220729-0009/
• https://security.netapp.com/advisory/ntap-20240621-0006/
• https://www.debian.org/security/2022/dsa-5188
• https://www.debian.org/security/2022/dsa-5192
• https://www.debian.org/security/2022/dsa-5256
• https://www.oracle.com/security-alerts/cpujul2022.html

Affected products (156)

• cpe:2.3:a:apache:xalan-java:*:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:graalvm:20.3.6:*:*:*:enterprise:*:*:*
• cpe:2.3:a:oracle:graalvm:21.3.2:*:*:*:enterprise:*:*:*
• cpe:2.3:a:oracle:graalvm:22.1.0:*:*:*:enterprise:*:*:*
• cpe:2.3:a:oracle:jdk:1.7.0:update343:*:*:*:*:*:*
• cpe:2.3:a:oracle:jdk:1.8.0:update333:*:*:*:*:*:*
• cpe:2.3:a:oracle:jdk:11.0.15.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:jdk:17.0.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:jdk:18.0.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:jre:1.7.0:update343:*:*:*:*:*:*
• cpe:2.3:a:oracle:jre:1.8.0:update333:*:*:*:*:*:*
• cpe:2.3:a:oracle:jre:11.0.15.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:jre:17.0.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:jre:18.0.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:*:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:-:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update1:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update10:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update101:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update11:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update111:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update121:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update13:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update131:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update141:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update15:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update151:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update161:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update17:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update171:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update181:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update191:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update2:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update201:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update21:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update211:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update221:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update231:*:*:*:*:*:*

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