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curl: IMAP connection reuse runs requests in the wrong case-sensitive mailbox

🗓️ 28 Aug 2026 17:40:25Reported by 1rhino2Type 
hackerone
 hackerone
🔗 hackerone.com👁 9 Views

Case-sensitivity bug in curl 8.21.0 IMAP connection reuse allows cross-mailbox data access.

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10 Sep 2026 15:09Current
5.8Medium risk
Vulners AI Score5.8
9