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CVE-2024-37891 is an information-disclosure vulnerability in urllib3, the Python HTTP client library. When an application manually sets a Proxy-Authorization request header while not using urllib3's ProxyManager proxy support, urllib3 historically did not classify that header as sensitive for redirect handling. Consequently, the header could be retained and sent when the client automatically followed a cross-origin redirect. urllib3 corrected this behavior by stripping Proxy-Authorization during cross-origin redirects.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
27 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability listed as addressed by this Red Hat container-image update; no technical vulnerability details are provided in the content.
A vulnerability addressed by the RHSA-2024:8704 security update; the advisory provides no technical details in the supplied content.
Unknown
A vulnerability addressed by this Red Hat security advisory; no technical details are provided in the content.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.