Description
A flaw was found in curl. When the command-line tool is executed with the remote header name option to prevent overwriting existing files, a malicious server can bypass this protection by returning an intermediate HTTP 103 (Early Hints) response or through specific header ordering. This flaw allows an attacker controlling a remote server to overwrite existing local files on the client system.
Published: n/a
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8927-1 curl vulnerabilities
History

Sat, 17 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in curl. When the command-line tool is executed with the remote header name option to prevent overwriting existing files, a malicious server can bypass this protection by returning an intermediate HTTP 103 (Early Hints) response or through specific header ordering. This flaw allows an attacker controlling a remote server to overwrite existing local files on the client system.
Title curl: curl: -J no-clobber guarantee bypassed with 103 early hints
Weaknesses CWE-73
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}

threat_severity

Low


Subscriptions

No data.

cve-icon MITRE

No data.

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Low

Publid Date: 2026-10-14T12:00:00Z

Links: CVE-2026-92390 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T02:00:07Z

Weaknesses
  • CWE-73

    External Control of File Name or Path