CVE-2021-43308
Exponential ReDoS in markdown-link-extractor
HIGH
7.5
CVSS Score
Published: June 1, 2022 at 04:47 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
2 products affected across 2 vendorsMarkdown Link ExtractorLink Extractor Project Markdown Link Extractor
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
Description
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module's exported function
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 3.0.24.0.0
Affected range stops below 3.0.2, so it looks safe — our inference, not a vendor statement
v < 3.0.2
Affected range stops below 3.0.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-1333
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