CVE-2026-35406
HIGH7.5EPSS 0.01%netavark has incorrect error handling for malformed tcp packets
Published: 4/7/2026Modified: 4/24/2026
Also known as:GHSA-hfpq-x728-986j
Description
### Impact A truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. ### Patches https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1 ### Workarounds None ### Credits Thanks to @dkane01 for reporting this
Affected packages (2)
- crates.io/netavark>= 1.16.0, < 1.17.1
- Debian/aardvark-dnsfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-35406
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-35406
- PATCHhttps://github.com/containers/aardvark-dns
- WEBhttps://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1
- WEBhttps://github.com/containers/aardvark-dns/releases/tag/v1.17.1
- WEBhttps://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j