CVE-2026-26899 Command injection in n/a
Authenticated users can execute arbitrary shell commands via metacharacters in the name parameter of the https-dns-proxy plugin on OpenWrt.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26899?
CVE-2026-26899 is a high-severity command injection vulnerability in n/a, published on 27 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in luci-app-https-dns-proxy on OpenWrt PR #15 (< 2026-01-17). The setInitAction function in /usr/libexec/rpcd/luci.https-dns-proxy allows authenticated users to execute arbitrary shell commands via shell metacharacters in the name parameter
Weakness: CWE-78
Which versions are affected by CVE-2026-26899?
How do I fix CVE-2026-26899?
No fix has been published for CVE-2026-26899 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-26899 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-26899 exists.
Sources
Also known as GHSA-fg7r-8jq7-f2g6.