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CVE-2026-9079

9.8 · CRITICAL

libcurl had a flaw that when instructed to clear proxy authentication credentials which made it not do so, leaving the old credentials around to get used for subsequent transfers that should not kn…

Published Jul 3, 2026CWE-522EPSS 0.58%

Overview

CVE-2026-9079 is a critical-severity vulnerability. It was published on July 3, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

libcurl had a flaw that when instructed to clear proxy authentication

credentials which made it not do so, leaving the old credentials around to get

used for subsequent transfers that should not know nor use them.

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-2026-9079.htmlRefcurl.se/docs/CVE-2026-9079.jsonRefhackerone.com/reports/3750295Refhackerone.com/reports/3750295

How CyberStrike helps

Frequently asked questions

What is CVE-2026-9079?

CVE-2026-9079 is a critical-severity vulnerability. It was published on July 3, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-9079?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-9079?

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-2026-9079?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-9079 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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