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CVE-2026-35406 — Vulnerability in netavark — CVE Details

HIGH

netavark has incorrect error handling for malformed tcp packets

Published April 7, 2026Updated April 24, 2026Source: osv

Summary

### 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

Advisory Timeline

  • First published April 7, 2026 (188 days ago).
  • Last revised April 24, 2026 — 17 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update netavark to 1.17.1 or later
cargo update -p netavark --precise 1.17.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
netavark
crates.io
All versions1.17.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Frequently Asked Questions

What is CVE-2026-35406?
netavark has incorrect error handling for malformed tcp packets This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2026-35406?
CVE-2026-35406 affects netavark. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-35406 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-hfpq-x728-986j

Related CVEs

  • CVE-2026-93657
    HIGH

    hickory-resolver: Resolver::lookup() and Resolver::lookup_ip() APIs obscure DNSSEC validation failures

  • CVE-2026-18140
    HIGH

    aws-smithy-json: Uncontrolled recursion in the aws-smithy-json unknown-key skip path allows unauthenticated remote denial of service in smithy-rs generated servers

More crates.io advisories

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