Description
Netty before 3.9.8.Final, 3.10.x before 3.10.3.Final, 4.0.x before 4.0.28.Final, and 4.1.x before 4.1.0.Beta5 and Play Framework 2.x before 2.3.9 might allow remote attackers to bypass the httpOnly flag on cookies and obtain sensitive information by leveraging improper validation of cookie name and value characters.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | netty | 1:4.0.31-1 | — |
| Debian 13 | netty | 1:4.0.31-1 | — |
| Debian 12 | netty | 1:4.0.31-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | netty-3.9 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | netty | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | io.netty:netty | >= 3.10.0, < 3.10.3.Final | 3.10.3.Final | GHSA-xfv3-rrfm-f2rv |
| Maven | io.netty:netty | < 3.9.8.Final | 3.9.8.Final | GHSA-xfv3-rrfm-f2rv |
| Maven | io.netty:netty-parent | >= 4.0.0, < 4.0.28.Final | 4.0.28.Final | GHSA-xfv3-rrfm-f2rv |
| Maven | org.jboss.netty:netty | < 3.9.8.Final | 3.9.8.Final | GHSA-xfv3-rrfm-f2rv |
| Maven | org.jboss.netty:netty | >= 3.10.0, < 3.10.3.Final | 3.10.3.Final | GHSA-xfv3-rrfm-f2rv |
Advisories 2
- WID-SEC-2026-0180 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2022-0770 IBM DB2: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 8, 2026
References
- http://netty.io/news/2015/05/08/3-9-8-Final-and-3.html
- https://www.playframework.com/security/vulnerability/CVE-2015-2156-HttpOnlyBypass
- FEDORA-2015-8713 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1222923
- https://github.com/netty/netty/pull/3754
- FEDORA-2015-8684 vendor-advisory
- 74704 vdb-entry
- [oss-security] 20150516 Netty/Play's Security Updates (CVE-2015-2156) mailing-list
- [pulsar-commits] 20190416 [GitHub] [pulsar] one70six opened a new issue #4057: Security Vulnerabilities - Black Duck Scan - Pulsar v.2.3.1 mailing-list
- [cassandra-commits] 20191113 [jira] [Created] (CASSANDRA-15423) CVE-2015-2156 (Netty is vulnerable to Information Disclosure) mailing-list
- [cassandra-commits] 20191114 [jira] [Commented] (CASSANDRA-15423) CVE-2015-2156 (Netty is vulnerable to Information Disclosure) mailing-list
- [druid-commits] 20191115 [GitHub] [incubator-druid] ccaominh opened a new pull request #8878: Address security vulnerabilities mailing-list