PT-2021-15509 · Unknown · Merge-Change

Dung Le · Published 2021-08-11 · Updated 2021-09-01 · CVE-2021-23421

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions merge-change versions all

Description The issue concerns Prototype Pollution via the utils.set function. This affects all versions of the package merge-change.

Recommendations For all versions, consider disabling the utils.set function as a temporary workaround until a patch is available. Restrict access to the vulnerable function to minimize the risk of exploitation. Avoid using the utils.set function in sensitive operations until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Prototype Pollution

Weakness Enumeration

CWE-1321

CWE-915

Related Identifiers

CVE-2021-23421

GHSA-F9CV-665R-275H

Affected Products

Merge-Change

References · 8

• 🔥 https://snyk.io/vuln/SNYK-JS-MERGECHANGE-1310985 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-23421 · Security Note
• https://osv.dev/vulnerability/GHSA-f9cv-665r-275h · Vendor Advisory
• https://github.com/VladimirShestakov/merge-change · Note
• https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js#L89-L123 · Note
• https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js%23L89-L123 · Note
• https://t.me/cvenotify/19154 · Telegram Post
• https://t.me/cibsecurity/27183 · Telegram Post