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CVE-2022-21426

21
FAUCET Score

CVE-2022-21426 is a partial denial-of-service vulnerability affecting Oracle Java SE (versions 7u331, 8u321, 11.0.14, 17.0.2, 18) and Oracle GraalVM Enterprise Edition (versions 20.3.5, 21.3.1, 22.0.0.2), specifically within the JAXP component. This easily exploitable vulnerability allows an unauthenticated attacker with network access to cause a partial denial of service. It primarily impacts Java deployments running untrusted code in sandboxed environments or through APIs supplying data to the affected component. The vulnerability has a CVSS 3.1 Base Score of 5.3 (Medium), indicating low impact on availability, with no impact on confidentiality or integrity. The attack vector is network-based, requires no privileges or user interaction, and has low attack complexity. Currently, there is no evidence of active exploitation, nor is public exploit code available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness or immediate concern.

Impacted Technologies

VendorProductVersion(s)CPE
20.3.5CPE matchmatch criteria
cpe:2.3:a:oracle:graalvm:20.3.5:*:*:*:enterprise:*:*:*
21.3.1CPE matchmatch criteria
cpe:2.3:a:oracle:graalvm:21.3.1:*:*:*:enterprise:*:*:*
22.0.0.2CPE matchmatch criteria
cpe:2.3:a:oracle:graalvm:22.0.0.2:*:*:*:enterprise:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:oracle:jdk:1.7.0:update331:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:oracle:jdk:1.8.0:update321:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.20%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0320 is in the 82nd percentile among its peer group of 23,705 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (26)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 11.0.15
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 17.0.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 8u332
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: java-11-openjdk-1:11.0.15.0.9-2.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: java-1.8.0-openjdk-1:1.8.0.332.b09-1.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 SupplementaryFixed in: java-1.8.0-ibm-1:1.8.0.8.0-1jpp.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-11-openjdk-1:11.0.15.0.9-2.el8_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-17-openjdk-1:17.0.3.0.6-2.el8_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-1.8.0-openjdk-1:1.8.0.332.b09-1.el8_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: java-11-openjdk-1:11.0.15.0.9-2.el8_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: java-1.8.0-openjdk-1:1.8.0.332.b09-1.el8_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: java-11-openjdk-1:11.0.15.0.9-2.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: java-1.8.0-openjdk-1:1.8.0.332.b09-1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: java-11-openjdk-1:11.0.15.0.9-2.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: java-1.8.0-openjdk-1:1.8.0.332.b09-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: java-11-openjdk-1:11.0.15.0.10-1.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: java-17-openjdk-1:17.0.3.0.7-1.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: java-1.8.0-openjdk-1:1.8.0.332.b09-1.el9_0
View patch
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: Linux
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: Windows
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 17Fixed in: Linux
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 17Fixed in: Windows
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 1.8Fixed in: Linux
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 1.8Fixed in: Windows
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-1.8.0-ibm

Vendor Advisories (1)

redhatCVE-2022-21426Moderate

OpenJDK: Unbounded memory allocation when compiling crafted XPath expressions (JAXP, 8270504)

Apr 19, 2022

References

lists.debian.org / debian-lts-announce/2022/05/msg00017.html
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20220429-0006
Third Party Advisory
debian.org / security/2022/dsa-5128
Third Party Advisory
debian.org / security/2022/dsa-5131
Third Party Advisory
oracle.com / security-alerts/cpuapr2022.html
PatchVendor Advisory