Description
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Published: 2026-08-17
Score: n/a
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Legora to version 2026-08-14 or newer to eliminate the vulnerable front‑matter processing path.
  • Restrict or disable the rendering of Mermaid diagrams in untrusted user input contexts; ensure that any rendering occurs after proper sanitization and without the use of eval().
  • Add a strict Content‑Security‑Policy that blocks the use of eval() and limits JavaScript execution to trusted sources on pages that include add‑in functionality.

Generated by OpenCVE AI on August 17, 2026 at 21:41 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

References

No reference.

History

Thu, 03 Sep 2026 05:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-95
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X'}

Wed, 26 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Title Legora < 2026-08-14 XSS via Mermaid gray-matter JavaScript Engine
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 26 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Description 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. This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}

 cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X'}

Fri, 21 Aug 2026 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Legora
Legora legora
Vendors & Products Legora
Legora legora

Mon, 17 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 17 Aug 2026 20:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Legora < 2026-08-14 XSS via Mermaid gray-matter JavaScript Engine
Weaknesses CWE-95
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}

Subscriptions

Legora Legora
cve-icon MITRE

Status: REJECTED

Assigner: VulnCheck

Published:

Updated: 2026-08-26T13:12:08.798Z

Reserved: 2026-08-14T18:01:19.917Z

Link: CVE-2026-74234

cve-icon Vulnrichment

Updated:

cve-icon NVD

Status : Rejected

Published: 2026-08-17T20:16:46.813

Modified: 2026-09-03T05:11:05.097

Link: CVE-2026-74234

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T12:39:42Z

Weaknesses

No weakness.