Bug 2461200 (CVE-2026-4873) - CVE-2026-4873 curl: curl: Information disclosure due to incorrect TLS connection reuse
Summary: CVE-2026-4873 curl: curl: Information disclosure due to incorrect TLS connect...
Keywords:
Status: NEW
Alias: CVE-2026-4873
Deadline: 2026-04-29
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-23 16:47 UTC by OSIDB Bzimport
Modified: 2026-04-30 09:52 UTC (History)
25 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-23 16:47:32 UTC 
A flaw was found in curl. A remote attacker could exploit this by initiating an unencrypted connection (via IMAP, SMTP, or POP3) and then making a subsequent request to the same host that requires Transport Layer Security (TLS). Due to incorrect connection reuse, the subsequent request would bypass the TLS requirement, leading to the transmission of sensitive information in cleartext. This vulnerability, categorized as Cleartext Transmission of Sensitive Information (CWE-319), results in information disclosure.
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