Mistune
Vendor:
First CVE: Oct 19, 2017 · Active for 8 years
17
Total CVEs
More Total CVEs than 94% of tracked products
5.7
Avg CVEs / Year
Higher CVE frequency than 91% of tracked products
6.3
Avg CVSS
Higher Avg CVSS than 29% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Mistune over time
Volume of CVEsAvg CVSS Base Score
First CVE
Oct 19, 2017
8 years ago
Most Recent CVE
Jul 8, 2026
19 days ago
CVE Severity & Scoring
Mistune17 CVEs
76%
24%
All CVEs352,785 CVEs
45%
40%
11%
MediumHigh
Attack Vector
Local0 (0.0%)
Network17 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low16 (94.1%)
High1 (5.9%)
Unknown0 (0.0%)
User Interaction
None6 (35.3%)
Unknown0 (0.0%)
Required11 (64.7%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None17 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (17 CVEs).
17 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-59928HIGH Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, a Markdown document containing many repeated or distinct reference-link definitions causes quadratic | Jul 8, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-59925HIGH Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, long sequences of well-formed double-asterisk or triple-asterisk emphasis pairs around a character c | Jul 8, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-59922HIGH Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, a run of closed tilde, equals-sign, or caret marker pairs around a character causes quadratic work i | Jul 8, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-59924MEDIUM Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Include.parse() joins and normalizes user-supplied include paths without verifying that the result r | Jul 8, 2026 | 5.9 | 30 | NO | NO |
CVE-2026-59929MEDIUM Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the safe_url filter in src/mistune/renderers/html.py blocks only javascript:, vbscript:, file:, and | Jul 8, 2026 | 6.1 | 30 | NO | NO |
CVE-2026-59926MEDIUM Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, render_admonition() in src/mistune/directives/admonition.py concatenates the Admonition directive :c | Jul 8, 2026 | 6.1 | 30 | NO | NO |
CVE-2026-59923MEDIUM Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safe_url() does not block percent-encoded javascript URIs, allowing attacker-supplied M | Jul 8, 2026 | 6.1 | 29 | NO | NO |
CVE-2026-59927MEDIUM Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the Include directive in src/mistune/directives/include.py detects only direct self-includes and not | Jul 8, 2026 | 5.3 | 28 | NO | NO |
CVE-2026-44896MEDIUM Mistune is a Python Markdown parser with renderers and plugins. In 3.2.0 and earlier, in src/mistune/directives/image.py, the render_figure() function concatenates figclass and fig | May 26, 2026 | 6.1 | 27 | NO | NO |
CVE-2026-44897MEDIUM Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, HTMLRenderer.heading() builds the opening <hN> tag by string-concatenating the id attribute value di | May 26, 2026 | 6.1 | 26 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (17 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (17 CVEs).
Media Mentions
Signals from CVEs in this product scope (17 CVEs).
Top CNAs Publishing CVEs For Mistune
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 0.7.4 | 1 | 6.1 | 0.9% | 0 | 0 |