CVE-2020-26302

2022-12-2323:03:51

CWE-1333

CWE-400

GitHub_M

web.nvd.nist.gov

is.js

vulnerability

cve-2020-26302

redos

regex loop

nvd

codeql

CVSS3

7.5

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

EPSS

0.001

Percentile

38.2%

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

Nvd

Vulners

Node

is.js_projectis.jsRange≤0.9.0

VendorProductVersionCPE
is.js_projectis.js*cpe:2.3:a:is.js_project:is.js:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
is.js_project	is.js	*	cpe:2.3:a:is.js_project:is.js::::::::

CNA Affected

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