CVE-2020-8252

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
NodeJS	Node	>= 4.0, < 4.; >= 5.0, < 5.; >= 6.0, < 6.; >= 7.0, < 7.; >= 8.0, < 8.; >= 9.0, < 9.; >= 10.0, < 10.22.1; >= 11.0, < 11.; >= 12.0, < 12.18.4; >= 13.0, < 13.; >= 14.0, < 14.9.0

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.htmlMailing List, Third Party Advisory
https://hackerone.com/reports/965914Permissions Required, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/Vendor Advisory
https://security.gentoo.org/glsa/202009-15Third Party Advisory
https://security.netapp.com/advisory/ntap-20201009-0004/Third Party Advisory
https://usn.ubuntu.com/4548-1/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.htmlMailing List, Third Party Advisory
https://hackerone.com/reports/965914Permissions Required, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/Vendor Advisory
https://security.gentoo.org/glsa/202009-15Third Party Advisory
https://security.netapp.com/advisory/ntap-20201009-0004/Third Party Advisory
https://usn.ubuntu.com/4548-1/Third Party Advisory

Timeline

Published: Sep 18, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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