6.2

CVE-2026-13757: p11-kit_project p11-kit Uncontrolled Recursion

CVSS: 6.2v3.1MediumModified
AliasesRHSA-2026:37469RHSA-2026:38342RHSA-2026:49667
Published 29-06-2026Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2026-13757 is a medium (CVSS 6.2) Uncontrolled Recursion vulnerability in p11-kit_project p11-kit. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.4% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.2/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
MGASA-2026-0460OPENSUSE-SU-2026:11862-1USN-8687-1

Timeline

  1. 29-06-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in p11-kit. The RPC message attribute parsing functions p11_rpc_message_get_attribute() and p11_rpc_message_get_attribute_array_value() form a mutually-recursive call chain with no recursion depth limit when processing nested CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TEMPLATE attributes. An unauthenticated attacker with local access to the p11-kit RPC Unix domain socket can send a specially crafted request with deeply nested template attributes, causing stack exhaustion and crashing the p11-kit server process and its dependent services.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

+0.05 pp

From 0.15% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.20%

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

Redhat15 products
Debian1 product
  • p11-kitAll versions (No fix recorded) | < 0.26.4-1
P11-kit_project1 product
Ubuntu1 product
  • p11-kit< 0.23.9-2ubuntu0.1+esm1 | < 0.23.20-1ubuntu0.1+esm1 | < 0.24.0-6ubuntu0.1 | < 0.25.3-4ubuntu2.2 | All versions (No fix recorded)

4 vendors · 18 products

References

39 links
Show all 39 references