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CVE-2026-7598

7.3 · HIGH

A security vulnerability has been detected in libssh2 up to 1.11.1.

Published May 1, 2026CWE-189EPSS 0.82%

Overview

CVE-2026-7598 is a high-severity vulnerability. It was published on May 1, 2026 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.

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

GitHubgithub.com/libssh2/libssh2/GitHubgithub.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1GitHubgithub.com/libssh2/libssh2/pull/1858Refvuldb.com/submit/805564Refvuldb.com/vuln/360555Refvuldb.com/vuln/360555/ctiRefaccess.redhat.com/errata/RHSA-2026:16736Refaccess.redhat.com/errata/RHSA-2026:7021Refaccess.redhat.com/security/cve/CVE-2026-7598Refbugzilla.redhat.com/show_bug.cgi?id=2464597

How CyberStrike helps

Frequently asked questions

What is CVE-2026-7598?

CVE-2026-7598 is a high-severity vulnerability. It was published on May 1, 2026 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-7598?

This vulnerability has a CVSS 3.1 base score of 7.3, 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-2026-7598?

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-2026-7598?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-7598 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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