7.5

CVE-2026-2100: p11-glue p11-kit Access of Uninitialized Pointer

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2026-2100RHSA-2026:18143RHSA-2026:18599
Published 26-03-2026Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2026-2100 is a high (CVSS 7.5) Access of Uninitialized Pointer vulnerability in p11-glue p11-kit. EPSS estimates a 1.26% chance of exploitation in the next 30 days, higher than 69.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.26%
0%100%
Low · +0.10 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-03-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

1.26%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

+0.10 pp

From 1.16% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.26%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat14 products
  • enterprise_linux9.0 | 10.0
  • hardened_imagesna
  • mingw32-p11-kit< 0:0.26.2-1.1.hum1
  • mingw64-p11-kit< 0:0.26.2-1.1.hum1
  • p11-kit< 0:0.26.2-1.el10 | < 0:0.26.2-1.el9 | < 0:0.26.2-1.1.hum1
Alpine1 product
  • p11-kit< 0.26.2-r0
Debian1 product
  • p11-kit< 0.26.2-2
Opensuse1 product
  • p11-kit&distro=openSUSE Tumbleweed< 0.26.2-1.1
P11-glue1 product
P11-kit_project1 product
Ubuntu1 product
  • p11-kitAll versions (No fix recorded)

7 vendors · 20 products

References

36 links
Show all 36 references