[Security] Bump highlight.js from 9.12.0 to 10.6.0

[dependabot-preview]

Bumps highlight.js from 9.12.0 to 10.6.0. This update includes security fixes.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

ReDOS vulnerabities: multiple grammars

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 following grammars you are vulnerable. If you are using highlightAuto to detect the language (and have any of these grammars registered) you are vulnerable.

All versions prior to 10.4.1 are vulnerable, including version 9.18.5.

Grammars with exponential backtracking issues:

• c-like (c, cpp, arduino)
• handlebars (htmlbars)
• gams
• perl
• jboss-cli
• r

... (truncated)

Affected versions: >= 9.0.0 < 10.4.1

Sourced from The GitHub Security Advisory Database.

Prototype Pollution in highlight.js

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 aliases:

const HLJS = function(hljs) {
</tr></table> 

... (truncated)

Affected versions: < 9.18.2

Release notes

Sourced from highlight.js's releases.

Version 10.6.0

New Languages:

• Added 3rd party Laravel Blade grammar to SUPPORTED_LANGUAGES (#2944) Michael Newton

Language grammar improvements:

• enh(scala) fix triple quoted strings (#2987) Josh Goebel
• enh(perl) Much improved regex detection (#2960) Josh Goebel
• enh(swift) Improved highlighting for operator and precedencegroup declarations. (#2938) Steven Van Impe
• fix(xml) Support single-character namespaces. (#2957) [Jan Pilzer][]
• enh(ruby) Support for character literals (#2950) Vaibhav Chanana
• enh(powershell) Add three VALID_VERBS and update the reference link (#2981) davidhcefx

Grammar Deprecations:

• Deprecate c-like, though you should not be using it directly anyways.
  • will be removed in v11.
• c and cpp are now wholly unique grammars that will diverge over time

Parser:

• new simpler highlightAll() API (#2962) Josh Goebel
  • this should be a drop-in replacement for both initHighlighting() and initHighlightingOnLoad()
  • note: it does not prevent itself from being called multiple times (as the previous API did)
• beginKeyword no longer bestows double relevance (#2953) Josh Goebel
• allow keywords to be an array of strings Josh Goebel
• add modes.MATCH_NOTHING_RE that will never match
  • This can be used with end to hold a mode open (it must then be ended with endsParent in one of it's children modes) Josh Goebel

Deprecations:

• initHighlighting() and initHighlightingOnLoad() deprecated.
  • Please use the new highlightAll() API instead.
  • Deprecated as of 10.6.
  • These will both be aliases to highlightAll in v11.

10.5.0 - Holiday Cheer Edition

What's New

Build:

• Add Subresource Integrity digest lists to cdn-assets Josh Goebel
• R and VB.net grammars now ship in our default build (:common) Josh Goebel

... (truncated)

Changelog

Sourced from highlight.js's changelog.

Version 10.6.0

New Languages:

• Added 3rd party Laravel Blade grammar to SUPPORTED_LANGUAGES (#2944) Michael Newton

Language grammar improvements:

• enh(scala) fix triple quoted strings (#2987) Josh Goebel
• enh(perl) Much improved regex detection (#2960) Josh Goebel
• enh(swift) Improved highlighting for operator and precedencegroup declarations. (#2938) Steven Van Impe
• fix(xml) Support single-character namespaces. (#2957) [Jan Pilzer][]
• enh(ruby) Support for character literals (#2950) Vaibhav Chanana
• enh(powershell) Add three VALID_VERBS and update the reference link (#2981) davidhcefx

Grammar Deprecations:

• Deprecate c-like, though you should not be using it directly anyways.
  • will be removed in v11.
• c and cpp are now wholly unique grammars that will diverge over time

Parser:

• new simpler highlightAll() API (#2962) Josh Goebel
  • this should be a drop-in replacement for both initHighlighting() and initHighlightingOnLoad()
  • note: it does not prevent itself from being called multiple times (as the previous API did)
• beginKeyword no longer bestows double relevance (#2953) Josh Goebel
• allow keywords to be an array of strings Josh Goebel
• add modes.MATCH_NOTHING_RE that will never match
  • This can be used with end to hold a mode open (it must then be ended with endsParent in one of it's children modes) Josh Goebel

Deprecations:

• initHighlighting() and initHighlightingOnLoad() deprecated.
  • Please use the new highlightAll() API instead.
  • Deprecated as of 10.6.
  • These will both be aliases to highlightAll in v11.

Version 10.5.0

Build:

• Add Subresource Integrity digest lists to cdn-assets Josh Goebel

... (truncated)

Commits

• eb122d3 (release) 10.6.0
• db39f7f (chore) bump deps
• aa03ebd (chore) bump 10.6 version
• f264072 enh(powershell) Add three VALID_VERBS and update the reference link (#2981) (...
• b1b0815 enh(scala) fix triple quoted string (#2987)
• 16c2224 (chore) add CHANGELOG for css consistency merge
• ff9bbe6 chore(stylus) NUMBER and CSS_NUMBER are redundant
• b922469 fix(css-shared): do reverse() a single time
• 960838e chore(css-like) lint css grammars
• 11a1a4b css consistency: consolidate more into shared-css
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by highlightjs_bot, a new releaser for highlight.js since your current version.

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