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.
CVE-2022-34169
“▲” beside the score: it is higher than NVD's CVSS score.
Score elevated to 8.9 because EPSS predicted 82% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs) when EchelonGraph scored this CVE. NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.
Also known asEUVD-2022-6300 (ENISA EUVD) · GHSA-9339-86wc-4qgf (GitHub Security Advisories)Source: ENISA EUVD
- High exploitation likelihood — EPSS 82%
- Public exploit or proof-of-concept code is available
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 8.9HIGHhigh confidence
- EG Risk
- 81EG Risk 81/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity75% × 45%Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation82% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 82%
- EPSS %ILE
- 99th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (8.9): severity, escalated by confirmed exploitation. This CVE's 8.9 is EPSS's lift toward 9.0 from its impact severity (EG Severity, CVSS 7.5 HIGH): a likelihood of exploitation, not impact.
- EG Severity
- 7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 82% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
July 19, 2022
Last Modified
May 27, 2026
Advisory Details (10)
Auto-updated Oct 28, 2026oss-security - Re: CVE-2022-42920: Apache Commons BCEL prior to 6.6.0 allows producing arbitrary bytecode via out-of-bounds writing
http://www.openwall.com/lists/oss-security/2022/11/07/2oss-security - Re: CVE-2022-42920: Apache Commons BCEL prior to 6.6.0 allows producing arbitrary bytecode via out-of-bounds writing
http://www.openwall.com/lists/oss-security/2022/11/04/8oss-security - Re: CVE-2022-34169: Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets
http://www.openwall.com/lists/oss-security/2022/10/18/2oss-security - Re: CVE-2022-34169: Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets
http://www.openwall.com/lists/oss-security/2022/07/20/3oss-security - Re: CVE-2022-34169: Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets
http://www.openwall.com/lists/oss-security/2022/07/20/2oss-security - Re: CVE-2022-34169: Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets
http://www.openwall.com/lists/oss-security/2022/07/19/6oss-security - CVE-2022-34169: Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets
http://www.openwall.com/lists/oss-security/2022/07/19/5Vendor Advisories for CVE-2022-34169(20)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2022-34169Microsoft Security Response Center (MSRC)High
Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets
- RHSA-2024:10207Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.3.11 Security update
- RHSA-2024:10208Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.1.8 on RHEL 7 security update
- RHSA-2024:8826Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.4 Security update
- RHSA-2024:8823Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.4 Security update
- RHSA-2024:8824Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.4 Security update
- RHSA-2024:8080Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.19 Security update
- RHSA-2024:8075Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.19 Security update
- +12 more
Patch Availability(26)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(10 across 6 ecosystems)
Debian:11(3)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bcel | 6.5.0-1 |
| — |
| openjdk-11 | 11.0.12+7-2 ... 11.0.16+8-1~deb10u1 (12 versions) |
| — |
| openjdk-17 | 17+35-1 ... 17~35ea-1 (15 versions) |
| — |
Debian:10(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bcel | 6.2-1 |
| — |
| openjdk-11 | 11.0.10+8-1 ... 11.0.9.1+1-1~deb10u2 (63 versions) |
| — |
Debian:12(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bcel | — |
| — |
| openjdk-17 | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bcel | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| bcel | — |
| — |
Maven(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| xalan:xalan | 2.1.0 ... 2.7.2 (11 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(11)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHSA-2022:5681IMPORTANT2022-07-19
RHSA-2022:5681 — Important
- Red HatRHSA-2022:5683IMPORTANT2022-07-19
RHSA-2022:5683 — Important
- Red HatRHSA-2022:5684IMPORTANT2022-07-19
RHSA-2022:5684 — Important
- Red HatRHSA-2022:5685IMPORTANT2022-07-19
RHSA-2022:5685 — Important
- Red HatRHSA-2022:5687IMPORTANT2022-07-19
RHSA-2022:5687 — Important
- Red HatRHSA-2022:5695IMPORTANT2022-07-19
RHSA-2022:5695 — Important
- Red HatRHSA-2022:5696IMPORTANT2022-07-19
RHSA-2022:5696 — Important
- Red HatRHSA-2022:5697IMPORTANT2022-07-19
RHSA-2022:5697 — Important
- Red HatRHSA-2022:5698IMPORTANT2022-07-19
RHSA-2022:5698 — Important
- Red HatRHSA-2022:5700IMPORTANT2022-07-19
RHSA-2022:5700 — Important
- Red HatRHSA-2022:5701IMPORTANT2022-07-19
RHSA-2022:5701 — Important
Data Freshness Timeline
(refreshed 6× in last 7d / 26× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 86 of 148 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 14 repeat rows among the latest 100 are merged into the row they repeat. The 62 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 08:26 UTCGHSA enrichmentGHSA-9339-86wc-4qgf · GitHub severity HIGH · GitHub CVSS 7.5
- 2026-11-01 08:26 UTCEG score recompute
- 2026-10-30 16:30 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-28 20:57 UTCEG score recompute
- 2026-10-28 20:57 UTCVendor advisory
- 2026-10-28 16:28 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-25 18:06 UTCEG score recompute
- 2026-10-25 16:29 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-24 16:29 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-21 16:29 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-21 06:58 UTCEG score recompute
- 2026-10-21 06:58 UTCVendor advisory
- 2026-10-20 16:29 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-18 08:33 UTCEG score recompute
- 2026-10-17 16:29 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-16 08:54 UTCOSV refresh
- 2026-10-15 16:28 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-14 16:29 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-13 16:29 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-12 18:52 UTCEG score recompute
- 2026-10-11 23:16 UTCEG score recompute
- 2026-10-10 19:56 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-07 23:45 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-06 15:14 UTCEPSS rescoreEPSS 82% · 99th percentile
- 2026-10-05 17:40 UTCEPSS rescoreEPSS 82% · 99th percentile
Show 61 moreShow fewer
- 2026-10-04 23:19 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-10-02 16:23 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-30 15:57 UTCEG score recompute▲ 1.30
- 2026-09-30 15:00 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-24 16:46 UTCOSV refresh
- 2026-09-24 14:00 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-22 14:45 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-17 19:24 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-16 14:05 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-12 14:57 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-06 13:45 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-05 15:25 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-05 08:48 UTCOSV refresh
- 2026-09-04 05:04 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-09-01 13:51 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-30 19:14 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-28 21:38 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-27 14:22 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-26 14:43 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-24 14:13 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-20 22:52 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-19 17:01 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-18 19:22 UTCOSV refresh
- 2026-08-16 14:53 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-16 02:11 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-15 01:27 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-12 13:48 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-06 13:44 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-08-03 15:27 UTCOSV refresh
- 2026-07-30 16:25 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-07-30 01:28 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-07-28 15:33 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-07-26 14:52 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-07-25 14:15 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-07-24 14:15 UTCEPSS rescoreEPSS 81% · 99th percentile
- 2026-07-23 14:16 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-23 02:12 UTCEG score recompute▲ 0.10
- 2026-07-22 22:59 UTCEG score recompute
- 2026-07-22 14:06 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-21 15:22 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-20 17:05 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-19 14:29 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-19 02:27 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-18 10:03 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-17 00:38 UTCOSV refresh
- 2026-07-16 17:00 UTCEPSS rescoreEPSS 34% · 98th percentile
- 2026-07-15 16:56 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-07-15 01:58 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-13 22:28 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-13 06:11 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-12 05:44 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-11 08:25 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-09 19:08 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-08 15:12 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-07 13:44 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-05 02:28 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-07-01 15:04 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-06-30 23:20 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-06-28 23:32 UTCOSV refresh
- 2026-06-28 14:06 UTCEPSS rescoreEPSS 18% · 96th percentile
- 2026-06-28 04:54 UTCEPSS rescoreEPSS 18% · 96th percentile
Publicly available exploits
(2 references)Public exploit code is referenced for this CVE (2 GitHub PoCs). Defenders should treat patch urgency accordingly.
- GitHub PoCDisnaming/CVE-2022-34169Published Jan 17, 2025
A PoC for CVE-2022-34169, for the SU_PWN challenge from SUCTF 2025
Open source ↗ - GitHub PoCflowerwind/AutoGenerateXalanPayloadPublished Jan 17, 2023
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
Open source ↗
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownDebian:11:bcel · Debian:12:bcel · Maven:xalan:xalan
Same vendor
10 shownredhat:RHSA-2022:5681 · redhat:RHSA-2024:8075 · redhat:RHSA-2022:5726
Frequently asked(5)
What is CVE-2022-34169?
When was the CVE record for CVE-2022-34169 published?
Is CVE-2022-34169 actively exploited?
What is the CVSS score of CVE-2022-34169?
How do I remediate CVE-2022-34169?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-34169
Is Your Infrastructure Affected by CVE-2022-34169?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.