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GHSA-wgc6-9f6w-h8hx

Withdrawn on 2025-06-18. GitHub withdrew this advisory; it no longer applies.

Withdrawn Advisory: microlight allows a denial of service

Source: GitHub Advisory Database (reviewed) Low CVE-2025-45526

Packages

EcosystemPackageAffectedFixed in
npm microlight <= 0.0.7 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

## Withdrawn Advisory This advisory has been withdrawn because the proof of concept does not demonstrate a practical security impact. This link is maintained to preserve external references. ## Original Description A denial of service (DoS) vulnerability has been identified in the JavaScript library microlight version 0.0.7. This library, used for syntax highlighting, does not limit the size of textual content it processes in HTML elements with the microlight class. When excessively large content (e.g., 100 million characters) is processed, the reset function in microlight.js consumes excessive memory and CPU resources, causing browser crashes or unresponsiveness. An attacker can exploit this vulnerability by tricking a user into visiting a malicious web page containing a microlight element with large content, resulting in a denial of service.

References

External links from the advisory. They lead to third-party sites.