CVE-2021-23518

2022-01-2100:00:00

ubuntu.com

cached-path-relative

package

vulnerable

prototype pollution

cache variable

object.create

incomplete fix

security advisory

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.011

Percentile

85.0%

JSON

The package cached-path-relative before 1.1.0 are vulnerable to Prototype
Pollution via the cache variable that is set as {} instead of
Object.create(null) in the cachedPathRelative function, which allows access
to the parent prototype properties when the object is used to create the
cached relative path. When using the origin path as proto, the
attribute of the object is accessed instead of a path. Note: This
vulnerability derives from an incomplete fix in
https://security.snyk.io/vuln/SNYK-JS-CACHEDPATHRELATIVE-72573

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchnode-cached-path-relative< anyUNKNOWN
ubuntu20.04noarchnode-cached-path-relative< anyUNKNOWN
ubuntu22.04noarchnode-cached-path-relative< anyUNKNOWN
ubuntu24.04noarchnode-cached-path-relative< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	node-cached-path-relative	< any	UNKNOWN
ubuntu	20.04	noarch	node-cached-path-relative	< any	UNKNOWN
ubuntu	22.04	noarch	node-cached-path-relative	< any	UNKNOWN
ubuntu	24.04	noarch	node-cached-path-relative	< any	UNKNOWN