CVE-2025-6493
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
CodeMirror Markdown Mode markdown.js redos
A weakness has been identified in CodeMirror up to 5.65.20. Affected is an unknown function of the file mode/markdown/markdown.js of the component Markdown Mode. This manipulation causes inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be exploited. Upgrading to version 6.0 is able to address this issue. You should upgrade the affected component. Not all code samples mentioned in the GitHub issue can be found. The repository mentions, that "CodeMirror 6 exists, and is [...] much more actively maintained."
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
CodeMirror
- Vendor
- n/a
- Product
- CodeMirror
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.65.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.18 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 5.65.20 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.0 | unaffected | Unavailable | Unavailable | Unavailable | None listed |