CVE-2026-115354
Mistune before 3.3.0 contains a path traversal vulnerability in the opt-in Include directive that…
- Risk score
- 44/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 22 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Mistune before 3.3.0 contains a path traversal vulnerability in the opt-in Include directive that allows attackers to read local files by supplying relative or absolute include paths. Attackers who submit Markdown rendered via Markdown.read() can disclose files such as /etc/passwd and inject unescaped HTML or script c…
- Affected
- See advisory
- Fix
- Upgrade the product to 3.3.0 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.5 medium
References
Original description
Mistune before 3.3.0 contains a path traversal vulnerability in the opt-in Include directive that allows attackers to read local files by supplying relative or absolute include paths. Attackers who submit Markdown rendered via Markdown.read() can disclose files such as /etc/passwd and inject unescaped HTML or script content into rendered output.
Last activity 22 Oct 2026. Patch Forecast updates every hour.