# CVE-2026-47895: Use after free in strongSwan

> A double-free vulnerability in strongSwan's EAP-Identity parsing allows remote attackers to cause a denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Aug 2026
- **Updated:** 24 Aug 2026
- **Also known as:** ALPINE-CVE-2026-47895, AZL-97377, DEBIAN-CVE-2026-47895, GHSA-55p5-7gvc-767j, SUSE-SU-2026:22168-1, SUSE-SU-2026:2312-1, UBUNTU-CVE-2026-47895, USN-8407-1, openSUSE-SU-2026:11005-1, openSUSE-SU-2026:21092-1

## What is CVE-2026-47895?

CVE-2026-47895 is a high-severity use after free vulnerability in strongSwan, published on 22 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that result in an empty but non-NULL encoding are not correctly cloned and trigger a double-free once the duplicates are destroyed.

Weakness: CWE-415 (Double Free)

## Which versions are affected by CVE-2026-47895?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `strongswan` | SUSE:Linux Enterprise Server 12 SP5-LTSS | All versions | 5.1.3-26.38.1 |
| `strongswan` | SUSE:Linux Enterprise Server 16.0 | All versions | 6.0.6-160000.2.1 |
| `strongswan` | SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | All versions | 5.1.3-26.38.1 |
| `strongswan` | SUSE:Linux Enterprise Server for SAP applications 16.0 | All versions | 6.0.6-160000.2.1 |
| `strongswan` | openSUSE:Leap 16.0 | All versions | 6.0.6-160000.2.1 |
| `strongswan` | openSUSE:Tumbleweed | All versions | 6.0.7-1.1 |

## How do I fix CVE-2026-47895?

Upgrade to a fixed version.

## Is CVE-2026-47895 being exploited?

There is no known exploitation of CVE-2026-47895 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47895 and fix it if it is affected.

What it is: CVE-2026-47895 is a high-severity use after free vulnerability in strongSwan, published on 22 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-47895 in the wild and no public exploit code.

Affected product: strongSwan. 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-2026-47895/ (Markdown: https://insights.sbomify.com/CVE-2026-47895/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47895
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47895
- OSV: https://osv.dev/vulnerability/CVE-2026-47895

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47895/
Summaries are generated and may contain mistakes; the official description above is the record.