Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
p11-glue p11-kit — P11-kit: null dereference via c_derivekey with specific null parameters
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U N N H 7.5 .0116 64.6 —
AFFECTED
Product Versions Fixed
p11-kit unspecified —
Red Hat Enterprise Linux 10 unspecified 0:0.26.2-1.el10
Red Hat Enterprise Linux 9 unspecified 0:0.26.2-1.el9
Red Hat Enterprise Linux 9 unspecified 0:0.26.2-1.el9
Cost Management 4 unspecified 1780946239
Red Hat Hardened Images unspecified 0.26.2-1.1.hum1
Red Hat Insights proxy 1.5 unspecified 1780420428
Red Hat Update Infrastructure 5 unspecified 1779798159
Red Hat Update Infrastructure 5 unspecified 1779798164
Red Hat Update Infrastructure 5 unspecified 1779798165
+ 6 more
TIMELINE
Feb 6 Reserved by redhat
Mar 26 Published (CNA: redhat)
Aug 17 RESCORED — CVE-2026-2100 (p11-glue p11-kit). CVSS 5.3 → 7.5 (NVD).
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| February 6, 2026 | Reserved | Reserved by redhat |
| March 26, 2026 | Published | Published (CNA: redhat) |
| August 17, 2026 | RESCORED | RESCORED — CVE-2026-2100 (p11-glue p11-kit). CVSS 5.3 → 7.5 (NVD). |
Affected
Affected products and packages — 16 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| p11-glue | p11-kit | — | — | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — | 0:0.26.2-1.el10 |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | 0:0.26.2-1.el9 |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | 0:0.26.2-1.el9 |
| Red Hat | Cost Management 4 | — | — | 1780946239 |
| Red Hat | Red Hat Hardened Images | — | — | 0.26.2-1.1.hum1 |
| Red Hat | Red Hat Insights proxy 1.5 | — | — | 1780420428 |
| Red Hat | Red Hat Update Infrastructure 5 | — | — | 1779798159 |
| Red Hat | Red Hat Update Infrastructure 5 | — | — | 1779798164 |
| Red Hat | Red Hat Update Infrastructure 5 | — | — | 1779798165 |
| Red Hat | Red Hat Update Infrastructure 5 | — | — | 1779798222 |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-2100 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.