CVE-2026-13757mediumCWE-674

CVE-2026-13757: medium-severity vulnerability in Red Hat Cert Manager support for Red Hat…

P11-kit: stack exhaustion via unbounded recursion in rpc attribute parsing

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.2epss 0.2%
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:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Cert Manager support for Red Hat OpenShift release 1.17Red Hat · Cert Manager support for Red Hat OpenShift release 1.18Red Hat · Cert Manager support for Red Hat OpenShift release 1.20Red Hat · Cost Management 4Red Hat · Red Hat Discovery 2Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Hardened ImagesRed Hat · Red Hat Insights proxy 1.5Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat Update Infrastructure 5
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