Attestkeep
Language: English
Sign up

Vulnerabilities / CVE-2019-20444

critical

CVE-2019-20444

netty: HTTP request smuggling

Published Modified CWE 444
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
GHSA9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Red Hat7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA. Rated lower by Red Hat (high), Ubuntu (medium).

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 and fixed versions

SourcePackageFixed in
maven::GitHub Security Advisory Mavenio.netty:netty, io.netty:netty-codec-http, org.jboss.netty:netty4.1.44
chainguarddruid34.0.0-r6
debian 10netty1:4.1.33-1+deb10u2
debian 11netty1:4.1.45-1
debian 12netty1:4.1.45-1
debian 13netty1:4.1.45-1
debian 14netty1:4.1.45-1
debian 8netty, netty-3.91:3.2.6.Final-2+deb8u2 and 1 more
debian 9netty, netty-3.91:4.1.7-2+deb9u2 and 1 more
echonetty1:4.1.45-1
Red Hatcandlepin, candlepin-selinux, nettyno fix listed
ubuntu 14.04-ESMnetty1:3.2.6.Final-2+deb8u2build0.14.04.1~esm1
Show all 25 entries from 17 sources
SourcePackageFixed in
maven::GitHub Security Advisory Mavenio.netty:nettyno fix listed
maven::GitHub Security Advisory Mavenio.netty:netty-codec-http4.1.44
maven::GitHub Security Advisory Mavenorg.jboss.netty:nettyno fix listed
chainguarddruid34.0.0-r6
debian 10netty1:4.1.33-1+deb10u2
debian 11netty1:4.1.45-1
debian 12netty1:4.1.45-1
debian 13netty1:4.1.45-1
debian 14netty1:4.1.45-1
debian 8netty1:3.2.6.Final-2+deb8u2
debian 8netty-3.93.9.0.Final-1+deb8u1
debian 9netty1:4.1.7-2+deb9u2
debian 9netty-3.93.9.9.Final-1+deb9u1
echonetty1:4.1.45-1
Red Hatcandlepinno fix listed
Red Hatcandlepin-selinuxno fix listed
Red Hatnettyno fix listed
ubuntu 14.04-ESMnetty1:3.2.6.Final-2+deb8u2build0.14.04.1~esm1
ubuntu 16.04netty-3.93.9.0.Final-1ubuntu0.1
ubuntu 16.04-ESMnetty-3.93.9.0.Final-1ubuntu0.1
ubuntu 18.04netty1:4.1.7-4ubuntu0.1
ubuntu 18.04netty-3.93.9.9.Final-1+deb9u1build0.18.04.1
ubuntu 18.04-ESMnetty1:4.1.7-4ubuntu0.1
ubuntu 18.04-ESMnetty-3.93.9.9.Final-1+deb9u1build0.18.04.1
wolfidruid34.0.0-r6

References

All 79 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.