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CVE-2026-92390

7.5 · HIGH

When invoked with `--remote-header-name` (`-J`), curl fails to preserve its documented anti-clobbering protection if an intermediate 103 Early Hints response precedes the final HTTP response, or if…

Published Oct 20, 2026CWE-73EPSS 0.59%

Overview

CVE-2026-92390 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

When invoked with `--remote-header-name` (`-J`), curl fails to preserve its

documented anti-clobbering protection if an intermediate 103 Early Hints

response precedes the final HTTP response, or if an `ETag` header is processed

before `Content-Disposition` under `--etag-save`. This flaw allows an HTTP(S)

server to overwrite an existing local file specified in the

`Content-Disposition` header despite the presence of the `-J` non-overwrite

constraint.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcurl.se/docs/CVE-2026-92390.htmlRefcurl.se/docs/CVE-2026-92390.jsonRefhackerone.com/reports/4023192Refhackerone.com/reports/4023192

How CyberStrike helps

Frequently asked questions

What is CVE-2026-92390?

CVE-2026-92390 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-92390?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-92390?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-92390?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-92390 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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