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2 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.
Impact: Potential ReDOS vulnerabilities (exponential and polynomial RegEx backtracking) oswasp: The Regular expression Denial of Service (ReDoS) is a Denial of Service attack, that exploits the fact that most Regular Expression implementations may reach extreme situations that cause them to work very slowly (exponentially related to input size). An attacker can then cause a program using a Regular Expression to enter these extreme situations and then hang for a very long time. If are you are using Highlight.js to highlight user-provided data you are possibly vulnerable. On the client-side (in a browser or Electron environment) risks could include lengthy freezes or crashes... On the server-side infinite freezes could occur... effectively preventing users from accessing your app or service (ie, Denial of Service). This is an issue with grammars shipped with the parser (and potentially 3rd party grammars also), not the parser itself. If you are using Highlight.js with any of the…
Recommended action: Upgrade to 10.4.1 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Impact Affected versions of this package are vulnerable to Prototype Pollution. A malicious HTML code block can be crafted that will result in prototype pollution of the base object's prototype during highlighting. If you allow users to insert custom HTML code blocks into your page/app via parsing Markdown code blocks (or similar) and do not filter the language names the user can provide you may be vulnerable. The pollution should just be harmless data but this can cause problems for applications not expecting these properties to exist and can result in strange behavior or application crashes, i.e. a potential DOS vector. If your website or application does not render user provided data it should be unaffected. Patches Versions 9.18.2 and 10.1.2 and newer include fixes for this vulnerability. If you are using version 7 or 8 you are encouraged to upgrade to a newer release. Workarounds Patch your library Manually patch your library to create null objects for both languages and…
Recommended action: Upgrade to 10.1.2 or 9.18.2 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.