CVE-2021-33503 (GCVE-0-2021-33503)
Vulnerability from cvelistv5 – Published: 2021-06-29 10:55 – Updated: 2024-08-03 23:50
VLAI
EPSS
VEX
Summary
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.
Severity
7.5 (High)
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202107-36 | vendor-advisoryx_refsource_GENTOO |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://github.com/advisories/GHSA-q2q7-5pp4-w6pg | x_refsource_CONFIRM |
| https://github.com/urllib3/urllib3/commit/2d4a3fe… | x_refsource_CONFIRM |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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