python-jose failure to use a constant time comparison for HMAC keys

CRITICAL 9.8CVE-2016-7036 · GHSA-w799-prg3-cx77 · PYSEC-2017-28 · Published 23/01/2017 · updated 17/06/2026

In short

CVE-2016-7036 is a CRITICAL (CVSS 9.8) vulnerability affecting python-jose, python-jose (python-jose project).
Chance of exploitation in the next 30 days (EPSS): 2.2%, higher than 82.3% of all vulnerabilities.
Fix: update to 1.3.2 or later.

Package	Affected versions	Patched versions
python-jose PyPI	`< 1.3.2`	`1.3.2`
python-jose python-jose_project	`≤ 1.3.1`	No fix yet

python-jose before 1.3.2 allows attackers to have unspecified impact by leveraging failure to use a constant time comparison for HMAC keys.

NVD description

python-jose before 1.3.2 allows attackers to have unspecified impact by leveraging failure to use a constant time comparison for HMAC keys.

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Package

Affected versions

Patched versions

PyPI

< 1.3.2

1.3.2

≤ 1.3.1

No fix yet

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