What is GHSA-g9r4-xpmj-mj65?

GHSA-g9r4-xpmj-mj65 is a security advisory published by GitHub Security Advisories with High severity. Prototype Pollution in handlebars

Why does GHSA-g9r4-xpmj-mj65 have no CVE ID yet?

GitHub Security Advisories published this advisory directly to customers before NVD assigned a CVE ID. This is the embargo-window disclosure pattern — vendors notify customers on day 0; NVD's public record follows days to weeks later.

Which products are affected by GHSA-g9r4-xpmj-mj65?

GHSA-g9r4-xpmj-mj65 affects 2 products, including: npm/handlebars:\u003c 3.0.8; npm/handlebars:\u003e= 4.0.0, \u003c 4.5.3.

GHSA-g9r4-xpmj-mj65HighDisclosed before NVD

Prototype Pollution in handlebars

Vendor

GitHub Security Advisories

Published

September 4, 2020

Last Modified

January 9, 2023

📋 Description

Versions of handlebars prior to 3.0.8 or 4.5.3 are vulnerable to prototype pollution. It is possible to add or modify properties to the Object prototype through a malicious template. This may allow attackers to crash the application or execute Arbitrary Code in specific conditions.

Recommendation

Upgrade to version 3.0.8, 4.5.3 or later.

🎯 Affected products2

npm/handlebars:< 3.0.8
npm/handlebars:>= 4.0.0, < 4.5.3

🔗 References (2)

https://www.npmjs.com/advisories/1325
https://github.com/advisories/GHSA-g9r4-xpmj-mj65