CVE-2026-13757
Published: July 1, 2026Last modified: July 9, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.2 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | p11-kit | Not affected (0.24.1-r1) |
| 25 LTS | p11-kit | Fixed (0.26.2-r1) | |
| Stream | p11-kit | Fixed (0.26.2-r2) |
References
- https://access.redhat.com/errata/RHSA-2026:37469
- https://access.redhat.com/errata/RHSA-2026:38342
- https://access.redhat.com/errata/RHSA-2026:49667
- https://access.redhat.com/errata/RHSA-2026:49668
- https://access.redhat.com/security/cve/CVE-2026-13757
- https://bugzilla.redhat.com/show_bug.cgi?id=2494556
- https://github.com/advisories/GHSA-p2wm-69qx-x25w