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.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
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
Which versions are affected by CVE-2026-47895?
Linux distribution packages (6)
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.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-47895 being exploited?
There is no known exploitation of CVE-2026-47895 in the wild and no public exploit code.
Sources
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 and 4 more.