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Fencer Intel
high 7.5

CVE-2015-2156 json

Information Exposure in Netty

published 2017-10-18 9 y ago modified 2026-09-10 1 mo ago also GHSA-xfv3-rrfm-f2rv , EUVD-2020-0524

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven io.netty:netty-parent 4.0.28.Final
  • maven org.jboss.netty:netty 3.9.8.Final, 3.10.3.Final
  • maven io.netty:netty 3.9.8.Final, 3.10.3.Final
  • netty Debian 14, Debian 13, Debian 12 1:4.0.31-1

debian advisories DEBIAN-CVE-2015-2156

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-2156 updated cvss 2.6

netty: HttpOnly cookie bypass

  • Red Hat JBoss BRMS 5 netty netty
    affected: no fix planned “Will not fix”
  • Red Hat JBoss BRMS 6 netty netty Red Hat JBoss Data Grid 6 netty netty Red Hat JBoss Data Virtualization 6 netty netty Red Hat JBoss Enterprise Application Platform 5 netty netty Red Hat JBoss Enterprise Application Platform 6 netty netty Red Hat JBoss Fuse Service Works 6 netty netty
    +2 more products
    Red Hat JBoss Portal 5 netty netty Red Hat JBoss Portal 6 netty netty
    affected: no fix available
  • Red Hat JBoss SOA Platform 5 netty netty
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 6 netty Red Hat Subscription Asset Manager netty
    affected: no fix available
  • Red Hat BPM Suite 6 netty netty Red Hat JBoss Operations Network 3 netty netty
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.22% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven io.netty:netty-parent
>=4.0.0, <4.0.28.Final
4.0.28.Final
maven org.jboss.netty:netty
<3.9.8.Final
>=3.10.0, <3.10.3.Final
3.9.8.Final
3.10.3.Final
maven io.netty:netty
>=3.10.0, <3.10.3.Final
<3.9.8.Final
3.10.3.Final
3.9.8.Final

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.