CVE-2026-8369 Improper Input Validation in OpenThread NAT64 Translator
Attackers can inject corrupted IPv6 packets or bypass security checks in OpenThread NAT64 translators via crafted IPv4 packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8369?
CVE-2026-8369 is a medium-severity vulnerability in The OpenThread Authors OpenThread, published on 13 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper Input Validation in the NAT64 translator in The OpenThread Authors OpenThread before commit 26a882d on all platforms allows an attacker on the adjacent IPv4 network to inject corrupted IPv6 packets into the Thread mesh or bypass security checks via crafted IPv4 packets with options.
Weakness: CWE-20
Which versions are affected by CVE-2026-8369?
How do I fix CVE-2026-8369?
No fix has been published for CVE-2026-8369 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8369 being exploited?
There is no known exploitation of CVE-2026-8369 in the wild and no public exploit code.
Sources
Also known as GHSA-f6vh-g7gh-wh6h.