What is CVE-2023-45803?

CVE-2023-45803 is a medium-severity vulnerability in Urllib3, classified under Information Disclosure. CVSS score: 4.2/10. Published 2023-10-17.

How severe is CVE-2023-45803?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Is CVE-2023-45803 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Urllib3

CVE-2023-45803

urllib3 is a user-friendly HTTP client library for Python. urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 301, 302, or 303 after the request had its method changed from one that could a…

Vulnerability class: Information Disclosure

EPSS: 0.001 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Urllib3 — versions >= 2.0.0, < 2.0.7, < 1.26.18

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-45803?: CVE-2023-45803 is a medium-severity vulnerability in Urllib3, classified under Information Disclosure. CVSS score: 4.2/10. Published 2023-10-17.
How severe is CVE-2023-45803?: Medium severity. CVSS v3 base score is 4.2 out of 10.
Is CVE-2023-45803 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.