CVE-2021-33503

State: Published
Severity: Not scored
Published: Jun 29, 2021
Updated: Aug 3, 2024
Reserved: May 21, 2021

Description

An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
n/an/a	n/aAffected

References

FEDORA-2021-a6bde7ab18vendor-advisory
FEDORA-2021-9c5f3b8aaevendor-advisory
GLSA-202107-36vendor-advisory
https://www.oracle.com/security-alerts/cpuoct2021.html
https://github.com/advisories/GHSA-q2q7-5pp4-w6pg
https://github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec

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