CVE-2026-92390 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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Project Subscriptions

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Advisories

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

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://nvd.nist.gov/vuln/detail/CVE-2026-92390
https://www.cve.org/CVERecord?id=CVE-2026-92390

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		https://nvd.nist.gov/vuln/detail/CVE-2026-92390 https://www.cve.org/CVERecord?id=CVE-2026-92390
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`

Projects

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MITRE

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Vulnrichment

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NVD

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Redhat

Severity : Low

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

Links: CVE-2026-92390 - Bugzilla

OpenCVE Enrichment

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

Weaknesses

CWE-73

{"acknowledgement": "Red Hat would like to thank Joshua Rogers (Aisle Research) for reporting this issue.", "bugzilla": {"description": "curl: curl: -J no-clobber guarantee bypassed with 103 early hints", "id": "2550702", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550702"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-73", "details": ["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."], "name": "CVE-2026-92390", "package_state": [{"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Not affected", "package_name": "build-of-trustee/trustee-rhel9", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Not affected", "package_name": "openshift-sandboxed-containers/osc-podvm-payload-rhel9", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "igvm", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "rust", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "s390utils", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "snphost", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "trustee", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "rust", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "snphost", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "curl", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "rust", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Fix deferred", "package_name": "jbcs-httpd24-curl", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "package_name": "foreman", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "package_name": "openvox-agent", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "package_name": "puppet-agent", "product_name": "Red Hat Satellite 6"}], "public_date": "2026-10-14T12:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-92390\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-92390"], "statement": "This vulnerability is rated as Low severity because it is confined to the curl command-line utility, leaves the underlying libcurl library unaffected, and requires explicit use of non-default command arguments against an untrusted remote server. In typical Red Hat enterprise deployments, core services and applications integrate with libcurl for HTTP transfers rather than invoking the standalone CLI, significantly limiting exposure. Exploitation depends on user interaction where an administrator or script actively downloads files using the remote header naming option while handling specific server response codes like 103 Early Hints.", "threat_severity": "Low"}