CVE-2026-42579
- Source
- https://cve.org/CVERecord?id=CVE-2026-42579
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42579.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-42579
- Aliases
- Downstream
- Related
- Published
- 2026-05-13T18:01:52.500Z
- Modified
- 2026-05-20T04:03:09.620619313Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- Netty: DNS Codec Input Validation Bypass in Netty (Encoder + Decoder)
- Details
-
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's DNS codec does not enforce RFC 1035 domain name constraints during either encoding or decoding. This creates a bidirectional attack surface: malicious DNS responses can exploit the decoder, and user-influenced hostnames can exploit the encoder. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42579.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-20", "CWE-400", "CWE-626" ] }- References