CVE-2026-29079
7.5 · HIGHOverview
CVE-2026-29079 is a high-severity vulnerability affecting lexbor lexbor. It was published on March 13, 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
Lexbor is a web browser engine library. Prior to 2.7.0, a type‑confusion vulnerability exists in Lexbor’s HTML fragment parser. When ns = UNDEF, a comment is created using the “unknown element” constructor. The comment’s data are written into the element’s fields via an unsafe cast, corrupting the qualified_name field. That corrupted value is later used as a pointer and dereferenced near the zero page. This vulnerability is fixed in 2.7.0.
Remediation
Check the references section for vendor advisories and patches from lexbor. Update lexbor to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| lexbor | lexbor | >= 0, < 2.7.0 | Affected |
Frequently Asked Questions
What is CVE-2026-29079?
CVE-2026-29079 is a high-severity vulnerability affecting lexbor lexbor. It was published on March 13, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-29079?
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-2026-29079?
Check the references section for vendor advisories and patches from lexbor. Update lexbor to the latest patched version. 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-2026-29079?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-29079 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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