#VU79691 Input validation error in Markdown-it-py - CVE-2023-26302

Vulnerability identifier: #VU79691

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-26302

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Markdown-it-py
Universal components / Libraries / Libraries used by multiple products

Vendor: Executablebooks

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of invalid UTF-8 characters. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Markdown-it-py: 0.1.0 - 2.1.0

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External links
https://github.com/executablebooks/markdown-it-py/commit/53ca3e9c2b9e9b295f6abf7f4ad2730a9b70f68c

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.