CVE-2020-26302

2022-12-2221:15:08

CWE-400

CWE-1333

[email protected]

web.nvd.nist.gov

is.js

vulnerability

cve-2020-26302

redos

regex loop

nvd

codeql

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

36.4%

JSON

is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop “forever." This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue.

Affected configurations

Vulners

NVD

Node

arasatasayginis.jsRange≤0.9.0

CPENameOperatorVersion
is.js_project:is.jsis.js project is.jsle0.9.0

CPE	Name	Operator	Version
is.js_project:is.js	is.js project is.js	le	0.9.0

CNA Affected

[
  {
    "vendor": "arasatasaygin",
    "product": "is.js",
    "versions": [
      {
        "version": "0.9.0",
        "status": "affected",
        "lessThanOrEqual": "0.9.0",
        "versionType": "custom"
      }
    ]
  }
]