Medium 6.2Published Jun 29, 2026

CVE-2026-13757P11-kit: stack exhaustion via unbounded recursion in rpc attribute parsing

Updated under an hour ago (Oct 27, 2026, 2:23 AM ET)

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It affects Red Hat Enterprise Linux 10 and 10 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat Enterprise Linux 10

Exploited in the last 30 days

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: 6.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-674
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:0.26.4-1.el10_2 not affected	CNA record
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 redhat:cert_manager	from 1791371080 not affected	CNA record
Red Hat Cost Management 4 redhat:cost_management	from 1790844333 not affected	CNA record
Red Hat Red Hat Discovery 2 redhat:discovery	from 1786638573 not affected	CNA record
Red Hat Red Hat Hardened Images redhat:hummingbird	from 0.26.2-1.2.hum1 not affected	CNA record
Red Hat Red Hat Insights proxy 1.5 redhat:insights_proxy	from 1786433656 not affected	CNA record
Red Hat Red Hat Update Infrastructure 5 redhat:rhui	from 1786435241 not affected	CNA record
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift	4	CNA record
redhat hardened_images redhat:hardened_images	all versions	NVD
redhat openshift_container_platform redhat:openshift_container_platform	from 4.0 through 4.22.1	NVD
1–10 of 12

References

References

https://access.redhat.com/errata/RHSA-2026:37469	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:38342	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:49667	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:49668	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:53371	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:54387	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:54760	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:58981	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:72394	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:72395	vendor-advisory, x-refsource-redhat
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.