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Fencer Intel
high 7.5

CVE-2017-3156 json

Covert Timing Channel in Apache CXF

published 2017-08-10 9 y ago modified 2026-06-17 4 mo ago also GHSA-qc2p-q7x9-v64p , EUVD-2022-4941

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.3%
EPSS 6.3% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

The OAuth2 Hawk and JOSE MAC Validation code in Apache CXF prior to 3.0.13 and 3.1.x prior to 3.1.10 is not using a constant time MAC signature comparison algorithm which may be exploited by sophisticated timing attacks.

Patch / fix

  • maven org.apache.cxf.karaf:apache-cxf 3.0.13, 3.1.10

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-2017-3156 updated cvss 5.3

cxf: CXF OAuth2 Hawk and JOSE MAC Validation code are vulnerable to timing attacks

  • Red Hat JBoss Data Grid 6 cxf Red Hat JBoss Enterprise Application Platform 5 cxf Red Hat JBoss Enterprise Application Platform 6 cxf Red Hat JBoss Operations Network 3 cxf Red Hat JBoss Portal 6 cxf
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Enterprise 2 cxf
    under investigation
  • Red Hat JBoss A-MQ 6.3 Red Hat JBoss Fuse 6.3
    fixed: vendor fix RHSA-2017:1832
  • Red Hat BPM Suite 6 cxf Red Hat JBoss BRMS 5 cxf Red Hat JBoss BRMS 6 cxf Red Hat JBoss Data Virtualization 6 cxf Red Hat JBoss Enterprise Application Platform 7 cxf Red Hat JBoss Fuse Service Works 6 cxf
    +2 more products
    Red Hat JBoss SOA Platform 5 cxf Red Hat Single Sign-On 7 cxf
    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

6.31% chance of exploitation in the next 30 days, higher than 93% 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 5.0 AV:N/AC:L/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 org.apache.cxf.karaf:apache-cxf
<3.0.13
>=3.1.0, <3.1.10
3.0.13
3.1.10

Affected products

  • Apache Software Foundation Apache CXF

Classification

Weakness

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.