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Vulnerability Details :

CVE-2023-26303

Summary
Assigner-canonical
Assigner Org ID-cc1ad9ee-3454-478d-9317-d3e869d708bc
Published At-22 Feb, 2023 | 23:44
Updated At-11 Mar, 2025 | 18:22
Rejected At-
Credits

markdown-it-py crash on null assertions

Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null assertions with specially crafted input.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:canonical
Assigner Org ID:cc1ad9ee-3454-478d-9317-d3e869d708bc
Published At:22 Feb, 2023 | 23:44
Updated At:11 Mar, 2025 | 18:22
Rejected At:
▼CVE Numbering Authority (CNA)
markdown-it-py crash on null assertions

Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null assertions with specially crafted input.

Affected Products
Vendor
Executable Books
Product
markdown-it-py
Collection URL
https://github.com/executablebooks/markdown-it-py/releases
Package Name
markdown-it-py
Repo
https://github.com/executablebooks/markdown-it-py
Platforms
  • Linux
  • MacOS
  • Windows
Default Status
unaffected
Versions
Affected
  • From 0 before v2.2.0 (semver)
    • -> unaffectedfromcommit ae03c61
Problem Types
TypeCWE IDDescription
CWECWE-173CWE-173
Type: CWE
CWE ID: CWE-173
Description: CWE-173
Metrics
VersionBase scoreBase severityVector
3.13.3LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Version: 3.1
Base score: 3.3
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-267CAPEC-267
CAPEC ID: CAPEC-267
Description: CAPEC-267
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Mark Esler
remediation developer
Chris Sewell
Timeline
EventDate
Reported to upstream.2023-02-07 20:19:00
Patched by upstream.2023-02-22 04:56:39
Event: Reported to upstream.
Date: 2023-02-07 20:19:00
Event: Patched by upstream.
Date: 2023-02-22 04:56:39
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49
patch
Hyperlink: https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49
Resource:
patch
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49
patch
x_transferred
Hyperlink: https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49
Resource:
patch
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-173CWE-173 Improper Handling of Alternate Encoding
Type: CWE
CWE ID: CWE-173
Description: CWE-173 Improper Handling of Alternate Encoding
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@ubuntu.com
Published At:23 Feb, 2023 | 00:15
Updated At:11 Mar, 2025 | 19:15

Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null assertions with specially crafted input.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.13.3LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Primary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 3.3
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Type: Primary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CPE Matches
executablebooks
executablebooks
>>markdown-it-py>>Versions before 2.2.0(exclusive)
cpe:2.3:a:executablebooks:markdown-it-py:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-173Secondarysecurity@ubuntu.com
NVD-CWE-OtherPrimarynvd@nist.gov
CWE-173Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-173
Type: Secondary
Source: security@ubuntu.com
CWE ID: NVD-CWE-Other
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-173
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49security@ubuntu.com
Patch
https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49af854a3a-2127-422b-91ae-364da2661108
Patch
Hyperlink: https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49
Source: security@ubuntu.com
Resource:
Patch
Hyperlink: https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2023-26302
Matching Score-10
Assigner-Canonical Ltd.
ShareView Details
Matching Score-10
Assigner-Canonical Ltd.
CVSS Score-3.3||LOW
EPSS-0.02% / 3.68%
||
7 Day CHG~0.00%
Published-22 Feb, 2023 | 22:02
Updated-11 Mar, 2025 | 19:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
markdown-it-py CLI crash on invalid UTF-8 characters

Denial of service could be caused to the command line interface of markdown-it-py, before v2.2.0, if an attacker was allowed to use invalid UTF-8 characters as input.

Action-Not Available
Vendor-executablebooksExecutable Books
Product-markdown-it-pymarkdown-it-py
CWE ID-CWE-173
Improper Handling of Alternate Encoding
Details not found