Stack Exhaustion Vulnerability in p11-kit Affecting Red Hat Products
CVE-2026-13757

6.2MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
29 June 2026

What is CVE-2026-13757?

A vulnerability exists in p11-kit where the functions responsible for parsing RPC message attributes can lead to a depth-unlimited recursive call when handling nested attribute templates such as CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TEMPLATE. This can be exploited by an unauthenticated attacker with local access to the p11-kit RPC Unix domain socket, allowing them to send specially crafted requests that trigger excessive recursion. As a result, the p11-kit server process may exhaust its stack memory, leading to a crash that affects its functionality and any dependent services.

References

https://access.redhat.com/security/cve/CVE-2026-13757
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2494556
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
6.2
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.