CVE-2026-2100: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-hq85-3f6c-jx84
CVSS 5.3
CWE-824
Published
Advisory Summary

CVE-2026-2100 is a MODERATE (CVSS 5.3) security vulnerability vulnerability (CWE-824: Access of Uninitialized Pointer) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product accesses or uses a pointer that has not been initialized.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-2100 at a Glance

CVE Identifier CVE-2026-2100
GHSA Identifier GHSA-hq85-3f6c-jx84
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-824: Access of Uninitialized Pointer
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2026-2100

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-2100, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-824: Access of Uninitialized Pointer, where the product accesses or uses a pointer that has not been initialized. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

References

NVD — CVE-2026-2100 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2100
Software Source Repository REPOSITORY
https://github.com/p11-glue/p11-kit/pull/740
Software Release RELEASE
https://github.com/p11-glue/p11-kit/releases/tag/0.26.2
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2437308
Software Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2026-2100
access.redhat.com/errata/rhsa-2026:82... WEB
https://access.redhat.com/errata/RHSA-2026:82888
access.redhat.com/errata/rhsa-2026:82... WEB
https://access.redhat.com/errata/RHSA-2026:82857
access.redhat.com/errata/rhsa-2026:82... WEB
https://access.redhat.com/errata/RHSA-2026:82372
access.redhat.com/errata/rhsa-2026:82... WEB
https://access.redhat.com/errata/RHSA-2026:82354
access.redhat.com/errata/rhsa-2026:82... WEB
https://access.redhat.com/errata/RHSA-2026:82347
access.redhat.com/errata/rhsa-2026:82... WEB
https://access.redhat.com/errata/RHSA-2026:82322
access.redhat.com/errata/rhsa-2026:82... WEB
https://access.redhat.com/errata/RHSA-2026:82304
access.redhat.com/errata/rhsa-2026:72... WEB
https://access.redhat.com/errata/RHSA-2026:72502
access.redhat.com/errata/rhsa-2026:70... WEB
https://access.redhat.com/errata/RHSA-2026:7065
access.redhat.com/errata/rhsa-2026:58... WEB
https://access.redhat.com/errata/RHSA-2026:58981
access.redhat.com/errata/rhsa-2026:27... WEB
https://access.redhat.com/errata/RHSA-2026:27998
access.redhat.com/errata/rhsa-2026:22... WEB
https://access.redhat.com/errata/RHSA-2026:22634
access.redhat.com/errata/rhsa-2026:21... WEB
https://access.redhat.com/errata/RHSA-2026:21275
access.redhat.com/errata/rhsa-2026:18... WEB
https://access.redhat.com/errata/RHSA-2026:18599
access.redhat.com/errata/rhsa-2026:18... WEB
https://access.redhat.com/errata/RHSA-2026:18143

Frequently Asked Questions

What is CVE-2026-2100?
CVE-2026-2100 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-824: Access of Uninitialized Pointer.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-2100?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-2100?
CVE-2026-2100 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-2100?
CVE-2026-2100 is classified under CWE-824: Access of Uninitialized Pointer (The product accesses or uses a pointer that has not been initialized.).
How can I check Maven dependencies for CVE-2026-2100?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
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}