CVE-2023-43804: falha de média gravidade em urllib3
`Cookie` HTTP header isn't stripped on cross-origin redirects
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 5.9epss 1.4%
urllib3 is a user-friendly HTTP client library for Python. urllib3 doesn't treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly. This issue has been patched in urllib3 version 1.26.17 or 2.0.5.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
Produtos afetados
urllib3 · urllib3CVEs relacionadas — urllib3
No mesmo produto, das mais perigosas para as menos.
CVE-2026-21441HIGHurllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)EPSS 2.9%CVE-2024-37891MEDIUMProxy-Authorization request header isn't stripped during cross-origin redirects in urllib3EPSS 1.1%CVE-2025-66471HIGHurllib3 Streaming API improperly handles highly compressed dataEPSS 0.7%CVE-2025-66418HIGHurllib3 allows an unbounded number of links in the decompression chainEPSS 0.7%CVE-2026-44432HIGHurllib3: Decompression-bomb safeguards bypassed in parts of the streaming APIEPSS 0.7%CVE-2025-50182MEDIUMurllib3 does not control redirects in browsers and Node.jsEPSS 0.6%
Referências
https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafbhttps://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056dhttps://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9fhttps://lists.debian.org/debian-lts-announce/2023/10/msg00012.htmlhttps://lists.debian.org/debian-lts-announce/2024/12/msg00020.htmlhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ/https://security.netapp.com/advisory/ntap-20241213-0007/https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3