Highest advisory severityMedium 2 vendors · 2 advisories

CVE-2026-13757: P11-kit Vulnerability in NetApp Products

Not in the CISA KEV catalog. Medium advisory severity (CVSS 6.2, NetApp).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

CVE-2026-13757 key facts

CISA KEV: Not listed (catalog checked Nov 9, 2026)
Highest advisory severity: Medium
CVSS base score: 6.2 (NetApp), 6.2 (Red Hat)
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (Red Hat)
Weakness: CWE-674
Fixed releases: Red Hat: p11-kit-0:0.26.4-1.el10_2, p11-kit-0:0.26.4-1.el9_8, cert-manager/jetstack-cert-manager-acmesolver-rhel9:1791371080, cert-manager/jetstack-cert-manager-rhel9:1791371069, cert-manager/cert-manager-operator-rhel9:1791788287, cert-manager/cert-manager-istio-csr-rhel9:1791378395 and 44 more in the advisory
Vendor advisories: 2 from NetApp, Red Hat
VulniPulse record: Published Jul 13, 2026 · Updated Oct 2, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-13757; bulletin-wide values are not repeated here.

Is CVE-2026-13757 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-13757 is not in the CISA KEV catalog (checked Nov 9, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-13757?

Upgrade to a fixed release named by the vendor:

Red Hat: p11-kit-0:0.26.4-1.el10_2, p11-kit-0:0.26.4-1.el9_8, cert-manager/jetstack-cert-manager-acmesolver-rhel9:1791371080, cert-manager/jetstack-cert-manager-rhel9:1791371069, cert-manager/cert-manager-operator-rhel9:1791788287, cert-manager/cert-manager-istio-csr-rhel9:1791378395

This CVE requires same-user access to the p11-kit RPC Unix domain socket (/run/user/ /p11-kit/pkcs11-*). Any process running as the socket-owning user can trigger the crash without further authentication. If p11-kit is managed via systemd --user, ensure `Restart=on-failure` is set in the unit file so that a crash is automatically recovered without manual intervention. Red Hat recommends updating p11-kit to version 0.26.3 or later, which introduces a recursion depth limit in the RPC attribute parsing and fully addresses this flaw. (Red Hat)

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Vendor advisory comparison

NetApp

1 advisory

Advisory severityMedium6.2
Medium [CVE-2026-13757] P11-kit Vulnerability in NetApp Products
NTAP-20261002-0019Source published Oct 2, 2026Source updated Oct 2, 2026
P11-kit versions through 0.26.2 are susceptible to a vulnerability which when successfully exploited could lead to Denial of Service (DoS). Successful exploitation of this vulnerability could lead to Denial of Service (DoS). NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.
Affected products in this advisory
No product details extracted. Check the source bulletin.
Source-reported affected versions
0.26.2
Source-reported fixed versions
No fixed-version detail extracted. This does not mean no fix exists.
Mitigation guidance
No mitigation guidance extracted; consult the source.
Full advisory and evidence Open source bulletin

Red Hat

1 advisory

Advisory severityMedium6.2
Medium [CVE-2026-13757] Stack exhaustion via unbounded recursion in RPC attribute parsing
CVE-2026-13757Source published Jun 23, 2026Source updated Jun 23, 2026
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. Red Hat severity: Moderate — CVSS 6.2 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-674. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Cert Manager support for Red Hat OpenShift release 1.17; Cert Manager support for Red Hat OpenShift release 1.18; Cert Manager support for Red Hat OpenShift release 1.20; Cost Management 4; Red Hat Discovery 2; Red Hat Hardened Images; Red Hat Insights proxy 1.5; Red Hat Update…
Affected products in this advisory
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Cert Manager support for Red Hat OpenShift release 1.17
Cert Manager support for Red Hat OpenShift release 1.18
11 more entries in the full advisory.
Source-reported affected versions
Affected-version details not available in this record.
Source-reported fixed versions
p11-kit-0:0.26.4-1.el10_2
p11-kit-0:0.26.4-1.el9_8
cert-manager/jetstack-cert-manager-acmesolver-rhel9:1791371080
cert-manager/jetstack-cert-manager-rhel9:1791371069
46 more entries in the full advisory.
Mitigation guidance
This CVE requires same-user access to the p11-kit RPC Unix domain socket (/run/user/<uid>/p11-kit/pkcs11-*). Any process running as the socket-owning user can trigger the crash without further authentication. If p11-kit is managed via systemd --user, ensure `Restart=on-failure` is set in the unit file so that a crash is automatically recovered without manual intervention. Red Hat recommends updating p11-kit to version 0.26.3 or later, which introduces a recursion depth limit in the RPC attribute parsing and fully addresses this flaw.
Full advisory and evidence Open source bulletin

All NetApp advisories

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