PatchTheCVECVE-2023-26302: Denial of service could be caused to the command line interface of markdown-it-py, before v2.2.0, if an attack
CVE-2023-26302 is a low-severity flaw (CVSS 3.3) affecting markdown-it-py. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 3.3 (Low) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 87%) |
| CISA exploited list | No |
| Weakness | CWE-173 |
| Published | 2023-02-22 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-26302?
markdown-it-py: upgrade to 2.2.0. Exact commands for each OS are on this page.
Is CVE-2023-26302 being exploited?
CVE-2023-26302 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-26302 affect?
CVE-2023-26302 affects markdown-it-py. Severity is low (CVSS 3.3). 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.
How urgent is CVE-2023-26302?
Priority 15/100. No elevated risk signals yet.
Related CVEs
- CVE-2023-26303 LOW 3.3 UPGRADE Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null a