What is CVE-2026-82805?

CVE-2026-82805 is a medium-severity vulnerability in Typora, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-08-31.

How severe is CVE-2026-82805?

Medium severity. CVSS v3 base score is 4.3 out of 10.

RCE in Typora

CVE-2026-82805

A vulnerability was found in Typora up to 1.13.8/1.14.6. This vulnerability affects unknown code of the component Mermaid Rendering Engine. The manipulation of the argument classDef/style results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. Upgrading to version 1.14.8 is able to resolve this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

N/a Typora — versions 1.13.0, 1.13.1, 1.13.2

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (patch)
cna@vuldb.com (patch)

Frequently asked questions

What is CVE-2026-82805?: CVE-2026-82805 is a medium-severity vulnerability in Typora, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-08-31.
How severe is CVE-2026-82805?: Medium severity. CVSS v3 base score is 4.3 out of 10.