THREATPORT/VULNERABILITY/CVE-2022-39227
CRITICAL SEVERITY

CVE-2022-39227

Python Jwt vulnerability

CVSS
9.1
EPSS
3.7%
EPSS pct
88th
Exploited
No known
python-jwt is a module for generating and verifying JSON Web Tokens. Versions prior to 3.3.4 are subject to Authentication Bypass by Spoofing, resulting in identity spoofing, session hijacking or authentication bypass. An attacker who obtains a JWT can arbitrarily forge its contents without knowing the secret key. Depending on the application, this may for example enable the attacker to spoof other user's identities, hijack their sessions, or bypass authentication. Users should upgrade to version 3.3.4. There are no known workarounds.
Affected vendor
Python Jwt Project
Affected product
Python Jwt
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness type (CWE)
  • CWE-290 — Authentication Bypass by Spoofing
Published
2022-09-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity.

Its EPSS score of 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2022-39227

  • Confirm whether Python Jwt Project Python Jwt is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2022-39227.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-39227

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