CVE-2019-20444
Critical · CVSS 9.1- CVSS
- 9.1
- nvd
- EPSS
- —
- KEV
- No
- Class
- oss containerizable
- CWE-444
Description
HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."
Affected packages
| Maven | io.netty:netty | 0 → ∞ |
| Maven | io.netty:netty-codec-http | 0 → 4.1.44 |
| Maven | org.jboss.netty:netty | 0 → ∞ |
References
- https://access.redhat.com/errata/RHSA-2020:0497
- https://access.redhat.com/errata/RHSA-2020:0567
- https://access.redhat.com/errata/RHSA-2020:0601
- https://access.redhat.com/errata/RHSA-2020:0605
- https://access.redhat.com/errata/RHSA-2020:0606
- https://access.redhat.com/errata/RHSA-2020:0804
- https://access.redhat.com/errata/RHSA-2020:0805
- https://access.redhat.com/errata/RHSA-2020:0806
- https://access.redhat.com/errata/RHSA-2020:0811
- https://github.com/netty/netty/compare/netty-4.1.43.Final...netty-4.1.44.Final
- https://github.com/netty/netty/issues/9866
- https://github.com/poc-effectiveness/PoCAdaptation/tree/main/Adapted/CVE-2019-20444/5.0.0.Alpha1/exploit
Status: profiled · ingested 2026-10-09T00:00:43.000Z