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MitreCVE-2021-26813

HistoryMar 03, 2021 - 4:15 p.m.

CVE-2021-26813

2021-03-0316:15:13

CWE-1333

mitre

web.nvd.nist.gov

139

cve-2021-26813

markdown2

regex denial of service

vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

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

0.003

Percentile

69.8%

JSON

markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.

Affected configurations

Nvd

Node

markdown2_projectmarkdown2Range1.0.1.18–2.4.0

Node

fedoraprojectfedoraMatch32

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

VendorProductVersionCPE
markdown2_projectmarkdown2*cpe:2.3:a:markdown2_project:markdown2:*:*:*:*:*:*:*:*
fedoraprojectfedora32cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
fedoraprojectfedora34cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
markdown2_project	markdown2	*	cpe:2.3:a:markdown2_project:markdown2::::::::
fedoraproject	fedora	32	cpe:2.3:o:fedoraproject:fedora:32:::::::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*
fedoraproject	fedora	34	cpe:2.3:o:fedoraproject:fedora:34:::::::*