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CVE-2016-2402 Details

Description

OkHttp before 2.7.4 and 3.x before 3.1.2 allows man-in-the-middle attackers to bypass certificate pinning by sending a certificate chain with a certificate from a non-pinned trusted CA and the pinned certificate.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://koz.io/pinning-cve-2016-2402/	CVE	Technical DescriptionThird Party Advisory
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E	CVE
https://publicobject.com/2016/02/11/okhttp-certificate-pinning-vulnerability/	CVE	Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/02/10/8	CVE	Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/02/18/7	CVE	Mailing ListThird Party Advisory
https://koz.io/pinning-cve-2016-2402/	[email protected]	Technical DescriptionThird Party Advisory
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E	[email protected]
https://publicobject.com/2016/02/11/okhttp-certificate-pinning-vulnerability/	[email protected]	Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/02/10/8	[email protected]	Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/02/18/7	[email protected]	Mailing ListThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-295	Improper Certificate Validation	[email protected]

Affected Products

Product	Versions
squareup okhttp	<= 2.7.3
CPE cpe:2.3:a:squareup:okhttp:::::::: Remediation No remediation found in references.
squareup okhttp3	3.0.0 3.0.0 rc1 3.0.1 3.1.0 3.1.1
CPE cpe:2.3:a:squareup:okhttp3:3.0.0:::::::* cpe:2.3:a:squareup:okhttp3:3.0.0:rc1:::::: cpe:2.3:a:squareup:okhttp3:3.0.1:::::::* cpe:2.3:a:squareup:okhttp3:3.1.0:::::::* cpe:2.3:a:squareup:okhttp3:3.1.1:::::::* Remediation No remediation found in references.

Change History

9 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Feb 1, 2021	Modified Analysis	[email protected]
Dec 16, 2020	CVE Modified	[email protected]
Nov 15, 2017	Reanalysis	[email protected]
Feb 28, 2017	Initial Analysis	[email protected]