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CVE-2026-107929

8.1 · HIGH

When `CURLOPT_INTERFACE` (or the command line tool's `--interface` option) is set with one of the documented prefixes (`if!`, `host!`, `ifhost!`), that binding is not part of the connection reuse k…

Published Oct 20, 2026CWE-488EPSS 0.67%

Overview

CVE-2026-107929 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

When `CURLOPT_INTERFACE` (or the command line tool's `--interface` option) is

set with one of the documented prefixes (`if!`, `host!`, `ifhost!`), that

binding is not part of the connection reuse key, so a later transfer asking

for a different source can silently reuse an existing connection and go out

from the earlier transfer's source address

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-2026-107929.htmlRefcurl.se/docs/CVE-2026-107929.jsonRefhackerone.com/reports/4099618Refhackerone.com/reports/4099618

How CyberStrike helps

Frequently asked questions

What is CVE-2026-107929?

CVE-2026-107929 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-107929?

This vulnerability has a CVSS 3.1 base score of 8.1, 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-2026-107929?

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-2026-107929?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-107929 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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