CVE-2026-10832

Org.wildfly.security/wildfly-elytron-asn1: unbounded memory allocation in wildfly elytron asn.1 derdecoder via crafted der payload

MEDIUM

5.9

CVSS Score

Published: September 18, 2026 at 02:19 PM UTC

Updated: October 20, 2026 at 03:17 PM UTC

13 products affected across 1 vendorJBoss Enterprise Application PlatformSingle Sign onBuild of Keycloak

Using Cryostat 4 by Red Hat?

Get instant alerts when new vulnerabilities affect Cryostat 4 - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.9

Exploit prediction

EPSS 0.7%

SSVC

No known exploit

Description

A flaw was found in the DERDecoder class within wildfly-elytron-asn1. A remote attacker can exploit this resource exhaustion vulnerability by sending a specially crafted DER (Distinguished Encoding Rules) payload. The decoder attempts to allocate excessive memory based on an inflated length value without proper validation, leading to Java Virtual Machine (JVM) memory exhaustion. This results in a remote Denial of Service (DoS) for services that process untrusted DER/ASN.1 input, including SASL (Simple Authentication and Security Layer) authentication mechanisms and X.500 certificate principal parsing paths.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Build of Apache Camel for Quarkus · Red Hatrpm

90%

All versions3

Build of Apache Camel - HawtIO · Red Hatrpm

90%

All versions4

Build of Debezium · Red Hatrpm

90%

All versions3

Build of Keycloak · Red Hatcontainer

90%

All versions

Build of Quarkus · Red Hatrpm

90%

All versions3

Cryostat · Red Hatcontainer

90%

All versions4

Data Grid · Red Hatrpm

90%

All versions8

Fuse · Red Hatrpm

90%

All versions7

JBoss Enterprise Application Platform · Red Hatrpm

90%

All versions

Vendor states this is fixed in 0:1.1.9-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:1.1.9-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:1.1.9-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:1.2.7-1.redhat_00002.1.el10eap (unaffected)

Vendor states this is fixed in 0:1.2.7-1.redhat_00002.1.el8eap (unaffected)

Vendor states this is fixed in 0:1.2.7-1.redhat_00002.1.el9eap (unaffected)

Vendor states this is fixed in 0:1.85.0-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:1.85.0-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:1.85.0-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.0.18-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.0.18-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.0.18-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.0.5-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.0.5-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.0.5-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.1.0-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.1.0-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.1.0-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.18.9-1.redhat_00003.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.18.9-1.redhat_00003.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.18.9-1.redhat_00003.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.2.0-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.2.0-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.2.0-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.25.4-1.redhat_00003.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.25.4-1.redhat_00003.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.25.4-1.redhat_00003.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.3.2-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.3.2-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.3.2-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.3.26-2.SP3_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.3.26-2.SP3_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.3.26-2.SP3_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.40.0-8.redhat_00024.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.40.0-8.redhat_00024.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.40.0-8.redhat_00024.1.el9eap (unaffected)

Vendor states this is fixed in 0:2.6.11-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:2.6.11-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:2.6.11-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:3.0.1-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:3.0.1-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:3.0.1-1.Final_redhat_00001.1el9eap (unaffected)

Vendor states this is fixed in 0:3.0.22-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:3.0.22-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:3.0.22-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:3.0.6-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:3.0.6-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:3.0.6-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:3.1.0-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:3.1.0-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:3.1.0-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:3.2.2-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:3.2.2-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:3.2.2-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:3.6.3-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:3.6.3-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:3.6.3-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:4.0.11-2.SP1_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:4.0.11-2.SP1_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:4.0.11-2.SP1_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:4.0.5-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:4.0.5-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:4.0.5-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:4.0.7-4.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:4.0.7-4.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:4.0.7-4.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:4.1.136-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:4.1.136-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:4.1.136-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:4.1.5-5.redhat_00008.1.el10eap (unaffected)

Vendor states this is fixed in 0:4.1.5-5.redhat_00008.1.el8eap (unaffected)

Vendor states this is fixed in 0:4.1.5-5.redhat_00008.1.el9eap (unaffected)

Vendor states this is fixed in 0:4.1.7-1.SP1_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:4.1.7-1.SP1_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:4.1.7-1.SP1_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:5.0.31-1.SP2_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:5.0.31-1.SP2_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:5.0.31-1.SP2_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:5.1.0-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:5.1.0-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:5.1.0-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:6.6.54-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:6.6.54-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:6.6.54-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:7.4.0-1.Final_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:7.4.0-1.Final_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:7.4.0-1.Final_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:8.1.1-12.GA_redhat_00048.1.el10eap (unaffected)

Vendor states this is fixed in 0:8.1.1-12.GA_redhat_00048.1.el8eap (unaffected)

Vendor states this is fixed in 0:8.1.1-12.GA_redhat_00048.1.el9eap (unaffected)

Vendor states this is fixed in 0:8.1.8-9.GA_redhat_00006.1.el10eap (unaffected)

Vendor states this is fixed in 0:8.1.8-9.GA_redhat_00006.1.el8eap (unaffected)

Vendor states this is fixed in 0:8.1.8-9.GA_redhat_00006.1.el9eap (unaffected)

Vendor states this is fixed in 0:801.8.0-1.GA_redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:801.8.0-1.GA_redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:801.8.0-1.GA_redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 0:9.37.4-1.redhat_00001.1.el10eap (unaffected)

Vendor states this is fixed in 0:9.37.4-1.redhat_00001.1.el8eap (unaffected)

Vendor states this is fixed in 0:9.37.4-1.redhat_00001.1.el9eap (unaffected)

Vendor states this is fixed in 7 (unaffected)

JBoss Enterprise Application Platform Expansion Pack · Red Hatrpm

90%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

VDB Entryx_refsource_REDHAT

Source: cverecord

https://access.redhat.com/security/cve/CVE-2026-10832

Issue Trackingx_refsource_REDHAT

Source: cverecord

https://bugzilla.redhat.com/show_bug.cgi?id=2484703

Vendor Advisoryx_refsource_REDHAT

Source: cverecord

https://access.redhat.com/errata/RHSA-2026:70228

Vendor Advisoryx_refsource_REDHAT

Source: cverecord

https://access.redhat.com/errata/RHSA-2026:70229

Vendor Advisoryx_refsource_REDHAT

Source: cverecord

https://access.redhat.com/errata/RHSA-2026:70230

Vendor Advisoryx_refsource_REDHAT

Source: cverecord

https://access.redhat.com/errata/RHSA-2026:70277

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMredhat

Attack Vector: NETWORK
Complexity: HIGH
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-770

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card