# CVE-2026-42014: Gnutls: gnutls: use-after-free in gnutls_pkcs11_token_set_pin

> A use-after-free flaw in GnuTLS allows attackers to cause denial of service or execute code via crafted PIN change requests.

- **Severity:** Medium 6.6 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 Jun 2026
- **Updated:** 14 Oct 2026
- **Also known as:** ALPINE-CVE-2026-42014, AZL-90149, BELL-CVE-2026-42014, DEBIAN-CVE-2026-42014, ECHO-b315-3ec3-9f18, GHSA-m4m5-7xc2-xc7g, SUSE-SU-2026:3042-1

## What is CVE-2026-42014?

CVE-2026-42014 is a medium-severity use after free vulnerability in Cert Manager support for Red Hat OpenShift release 1.17, published on 16 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A flaw was found in GnuTLS. The `gnutls_pkcs11_token_set_pin` function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path.

Weakness: CWE-825 (Expired Pointer Dereference)

## Which versions are affected by CVE-2026-42014?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `gnutls` | SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise Micro 5.4 | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise Micro 5.5 | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise Server 15 SP4-LTSS | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise Server 15 SP5-LTSS | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | All versions | 3.7.3-150400.4.62.1 |
| `gnutls` | SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | All versions | 3.7.3-150400.4.62.1 |

## How do I fix CVE-2026-42014?

Apply the vendor's patch.

## Is CVE-2026-42014 being exploited?

There is no known exploitation of CVE-2026-42014 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-42014 and fix it if it is affected.

What it is: CVE-2026-42014 is a medium-severity use after free vulnerability in Cert Manager support for Red Hat OpenShift release 1.17, published on 16 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-42014 in the wild and no public exploit code.

Affected product: Cert Manager support for Red Hat OpenShift release 1.17. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-42014/ (Markdown: https://insights.sbomify.com/CVE-2026-42014/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-42014
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-42014
- OSV: https://osv.dev/vulnerability/CVE-2026-42014

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-42014/
Summaries are generated and may contain mistakes; the official description above is the record.