CVE-2022-21681
High
Description
Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `inline.reflinkSearch` may cause catastrophic backtracking against some strings and lead to a denial of service (DoS). Anyone who runs untrusted markdown through a vulnerable version of marked and does not use a worker with a time limit may be affected. This issue is patched in version 4.0.10. As a workaround, avoid running untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Marked
PublishedJan 14, 2022
First seenJan 14, 2022
How to fix
Update
- marked_project marked4.0.10 or later
- marked4.0.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| marked_project marked | v < 4.0.10 | 4.0.10 |
| fedoraproject fedora | 36 | — |
| markednpm | v < 4.0.10 | 4.0.10 |
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