CVE-2021-33503
2 advisories.
PyPI/urllib3 CVE-2021-33503: high 7.5
Catastrophic backtracking in URL authority parser when passed URL containing many @ characters
Action: Upgrade urllib3 to 1.26.5 or later.
pip install urllib3==1.26.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.25.4 | 1.26.5 | - |
Fixed versions
| 1.26.5 |
Sources
- osv: GHSA-q2q7-5pp4-w6pg
- https://github.com/urllib3/urllib3/security/advisories/GHSA-q2q7-5pp4-w6pg
- https://nvd.nist.gov/vuln/detail/CVE-2021-33503
- https://github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec
- https://github.com/urllib3/urllib3/commit/5b047b645f5f93900d5e2fc31230848c25eb1f5f#diff-52026d639119bf1e0364836b4e8a18bd9ed3c95c6ba39b26534a5057a65e35bbR65
- https://github.com/advisories/GHSA-q2q7-5pp4-w6pg
- https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2021-108.yaml
- https://github.com/urllib3/urllib3
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6SCV7ZNAHS3E6PBFLJGENCDRDRWRZZ6W
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FMUGWEAUYGGHTPPXT6YBD53WYXQGVV73
- https://security.gentoo.org/glsa/202107-36
- https://www.oracle.com/security-alerts/cpuoct2021.html
CVE-2021-33503 · published · modified · JSON
PyPI/urllib3 CVE-2021-33503: unknown
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,
Action: Upgrade urllib3 to 1.26.5 or later.
pip install urllib3==1.26.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.25.4 | 1.26.5 | - |
Fixed versions
| 1.26.5 |
Sources
- osv: PYSEC-2021-108
- https://github.com/advisories/GHSA-q2q7-5pp4-w6pg
- https://github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec
CVE-2021-33503 · published · modified · JSON