CVE-2026-74234

✕ Withdrawn — historical dataHIGHPre-NVD 7.7
7.7CVSS

Legora before 2026-08-14 contains a cross-site scripting vulnerability that allows attackers to achieve arbitrary JavaScript execution in a victim's browser by embedding a Mermaid block prefixed with a gray-matter JavaScript front-matter directive, causing the front-matter parser to invoke eval() before any SVG sanitization occurs. Attackers can exploit this flaw through influenced Mermaid diagram content to execute arbitrary JavaScript in the user's browser context, with elevated impact on Word and Outlook add-in surfaces where bearer session tokens are persisted in localStorage.

CVSS v3
7.7
EchelonGraph score
Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
EPSS PROB
—
EPSS %ILE
—
KEV
—Not applicable: this CVE ID was withdrawn

Published

August 17, 2026

Last Modified

August 21, 2026

References (2)

Frequently asked(4)

What is CVE-2026-74234?
CVE-2026-74234 is a rejected CVE ID: its record was withdrawn on August 26, 2026 and no longer describes a vulnerability. Reason given: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
When was the CVE record for CVE-2026-74234 published?
The CVE record for CVE-2026-74234 was published on August 17, 2026. EchelonGraph's copy of the record carries a last-modified date of August 21, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-74234?
CVE-2026-74234 has a CVSS base score of 7.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74234?
There is nothing to remediate under CVE-2026-74234: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability.