Description
A flaw was found in curl. When processing an HTTP redirect to an address containing user credentials, curl improperly retains and retransmits authentication state. A malicious server can exploit this behavior by redirecting curl to an untrusted destination, forcing the client to transmit sensitive authentication tokens, such as Kerberos tickets, to the third party. This flaw can lead to unauthorized information disclosure of user credentials across domain boundaries.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No solution or workaround provided in the CVE record.
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Tracking
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Advisories
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References
History
Sun, 18 Oct 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Curl
Curl curl |
|
| Vendors & Products |
Curl
Curl curl |
Sat, 17 Oct 2026 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in curl. When processing an HTTP redirect to an address containing user credentials, curl improperly retains and retransmits authentication state. A malicious server can exploit this behavior by redirecting curl to an untrusted destination, forcing the client to transmit sensitive authentication tokens, such as Kerberos tickets, to the third party. This flaw can lead to unauthorized information disclosure of user credentials across domain boundaries. | |
| Title | curl: curl: Authorization: Negotiate sent to foreign origin | |
| Weaknesses | CWE-200 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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OpenCVE Enrichment
Updated: 2026-10-18T19:45:00Z
Weaknesses