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CVE Vulnerabilities

CVE-2026-2100

Access of Uninitialized Pointer

Published: Mar 26, 2026 | Modified: Jun 22, 2026
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
5.3 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-2100
CWEhttps://cwe.mitre.org/data/definitions/824.html

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.

Weakness

The product accesses or uses a pointer that has not been initialized.

Affected Software

NameVendorStart VersionEnd Version
P11-kitP11-kit_project- (including)- (including)
Hardened_imagesRedhat- (including)- (including)
Enterprise_linuxRedhat9.0 (including)9.0 (including)
Enterprise_linuxRedhat10.0 (including)10.0 (including)
Red Hat Enterprise Linux 10RedHatp11-kit-0:0.26.2-1.el10*
Red Hat Enterprise Linux 9RedHatp11-kit-0:0.26.2-1.el9*
Red Hat Enterprise Linux 9RedHatp11-kit-0:0.26.2-1.el9*
Cost Management 4RedHatcostmanagement/costmanagement-metrics-rhel9-operator:1780946239*
Red Hat Hardened ImagesRedHatp11-kit-main-0.26.2-1.1.hum1*
Red Hat Insights proxy 1.5RedHatinsights-proxy/insights-proxy-container-rhel9:1780420428*
Red Hat Update Infrastructure 5RedHatrhui5/cds-rhel9:1779798159*
Red Hat Update Infrastructure 5RedHatrhui5/haproxy-rhel9:1779798164*
Red Hat Update Infrastructure 5RedHatrhui5/installer-rhel9:1779798165*
Red Hat Update Infrastructure 5RedHatrhui5/rhua-rhel9:1779798222*
P11-kitUbuntudevel*
P11-kitUbuntuupstream*

Extended Description

If the pointer contains an uninitialized value, then the value might not point to a valid memory location. This could cause the product to read from or write to unexpected memory locations, leading to a denial of service. If the uninitialized pointer is used as a function call, then arbitrary functions could be invoked. If an attacker can influence the portion of uninitialized memory that is contained in the pointer, this weakness could be leveraged to execute code or perform other attacks. Depending on memory layout, associated memory management behaviors, and product operation, the attacker might be able to influence the contents of the uninitialized pointer, thus gaining more fine-grained control of the memory location to be accessed.

References

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