diff --git a/lib/marked.js b/lib/marked.js
index b4cfd3f727..9389b8cb2c 100644
--- a/lib/marked.js
+++ b/lib/marked.js
@@ -571,7 +571,7 @@ inline.tag = edit(inline.tag)
.getRegex();
inline._label = /(?:\[[^\[\]]*\]|\\[\[\]]?|`[^`]*`|[^\[\]\\])*?/;
-inline._href = /\s*(<(?:\\[<>]?|[^\s<>\\])*>|(?:\\[()]?|\([^\s\x00-\x1f\\]*\)|[^\s\x00-\x1f()\\])*?)/;
+inline._href = /\s*(<(?:\\[<>]?|[^\s<>\\])*>|(?:\\[()]?|\([^\s\x00-\x1f\\()]*\)|[^\s\x00-\x1f()\\])*?)/;
inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
inline.link = edit(inline.link)
diff --git a/test/new/link_redos.html b/test/new/link_redos.html
new file mode 100644
index 0000000000..fdbeb4d337
--- /dev/null
+++ b/test/new/link_redos.html
@@ -0,0 +1,5 @@
+
+
diff --git a/test/new/link_redos.md b/test/new/link_redos.md
new file mode 100644
index 0000000000..effafa37ea
--- /dev/null
+++ b/test/new/link_redos.md
@@ -0,0 +1,2 @@
+* 伪类:[:active](https://developer.mozilla.org/en-US/docs/Web/CSS/:active)、[:any-link](https://developer.mozilla.org/en-US/docs/Web/CSS/:any-link)、[:blank](https://developer.mozilla.org/en-US/docs/Web/CSS/:blank)、[:checked](https://developer.mozilla.org/en-US/docs/Web/CSS/:checked)、[:current](https://developer.mozilla.org/en-US/docs/Web/CSS/:current)、[:default](https://developer.mozilla.org/en-US/docs/Web/CSS/:default)、[:defined](https://developer.mozilla.org/en-US/docs/Web/CSS/:defined)、[:dir()](https://developer.mozilla.org/en-US/docs/Web/CSS/:dir)、[:disabled](https://developer.mozilla.org/en-US/docs/Web/CSS/:disabled)、[:drop](https://developer.mozilla.org/en-US/docs/Web/CSS/:drop)、[:empty](https://developer.mozilla.org/en-US/docs/Web/CSS/:empty)、[:enabled](https://developer.mozilla.org/en-US/docs/Web/CSS/:enabled)、[:first](https://developer.mozilla.org/en-US/docs/Web/CSS/:first)、[:first-child](https://developer.mozilla.org/en-US/docs/Web/CSS/:first-child)、[:first-of-type](https://developer.mozilla.org/en-US/docs/Web/CSS/:first-of-type)、[:fullscreen](https://developer.mozilla.org/en-US/docs/Web/CSS/:fullscreen)、[:future](https://developer.mozilla.org/en-US/docs/Web/CSS/:future)、[:focus](https://developer.mozilla.org/en-US/docs/Web/CSS/:focus)、[:focus-visible](https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible)、[:focus-within](https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-within)、[:has()](https://developer.mozilla.org/en-US/docs/Web/CSS/:has)、[:host](https://developer.mozilla.org/en-US/docs/Web/CSS/:host)、[:host()](https://developer.mozilla.org/en-US/docs/Web/CSS/:host())、[:host-context()](https://developer.mozilla.org/en-US/docs/Web/CSS/:host-context())、[:hover](https://developer.mozilla.org/en-US/docs/Web/CSS/:hover)、[:indeterminate](https://developer.mozilla.org/en-US/docs/Web/CSS/:indeterminate)、[:in-range](https://developer.mozilla.org/en-US/docs/Web/CSS/:in-range)、[:invalid](https://developer.mozilla.org/en-US/docs/Web/CSS/:invalid)、[:is()](https://developer.mozilla.org/en-US/docs/Web/CSS/:is)、[:lang()](https://developer.mozilla.org/en-US/docs/Web/CSS/:lang)、[:last-child](https://developer.mozilla.org/en-US/docs/Web/CSS/:last-child)、[:last-of-type](https://developer.mozilla.org/en-US/docs/Web/CSS/:last-of-type)、[:left](https://developer.mozilla.org/en-US/docs/Web/CSS/:left)、[:link](https://developer.mozilla.org/en-US/docs/Web/CSS/:link)、[:local-link](https://developer.mozilla.org/en-US/docs/Web/CSS/:local-link)、[:not()](https://developer.mozilla.org/en-US/docs/Web/CSS/:not)、[:nth-child()](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-child)、[:nth-col()](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-col)、[:nth-last-child()](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-last-child)、[:nth-last-col()](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-last-col)、[:nth-last-of-type()](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-last-of-type)、[:nth-of-type()](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-of-type)、[:only-child](https://developer.mozilla.org/en-US/docs/Web/CSS/:only-child)、[:only-of-type](https://developer.mozilla.org/en-US/docs/Web/CSS/:only-of-type)、[:optional](https://developer.mozilla.org/en-US/docs/Web/CSS/:optional)、[:out-of-range](https://developer.mozilla.org/en-US/docs/Web/CSS/:out-of-range)、[:past](https://developer.mozilla.org/en-US/docs/Web/CSS/:past)、[:placeholder-shown](https://developer.mozilla.org/en-US/docs/Web/CSS/:placeholder-shown)、[:read-only](https://developer.mozilla.org/en-US/docs/Web/CSS/:read-only)、[:read-write](https://developer.mozilla.org/en-US/docs/Web/CSS/:read-write)、[:required](https://developer.mozilla.org/en-US/docs/Web/CSS/:required)、[:right](https://developer.mozilla.org/en-US/docs/Web/CSS/:right)、[:root](https://developer.mozilla.org/en-US/docs/Web/CSS/:root)、[:scope](https://developer.mozilla.org/en-US/docs/Web/CSS/:scope)、[:target](https://developer.mozilla.org/en-US/docs/Web/CSS/:target)、[:target-within](https://developer.mozilla.org/en-US/docs/Web/CSS/:target-within)、[:user-invalid](https://developer.mozilla.org/en-US/docs/Web/CSS/:user-invalid)、[:valid](https://developer.mozilla.org/en-US/docs/Web/CSS/:valid)、[:visited](https://developer.mozilla.org/en-US/docs/Web/CSS/:visited)、[:where()](https://developer.mozilla.org/en-US/docs/Web/CSS/:where)
+* 伪元素:[::after (:after)](https://developer.mozilla.org/en-US/docs/Web/CSS/::after)、[::backdrop](https://developer.mozilla.org/en-US/docs/Web/CSS/::backdrop)、[::before (:before)](https://developer.mozilla.org/en-US/docs/Web/CSS/::before)、[::cue (:cue)](https://developer.mozilla.org/en-US/docs/Web/CSS/::cue)、[::first-letter (:first-letter)](https://developer.mozilla.org/en-US/docs/Web/CSS/::first-letter)、[::first-line (:first-line)](https://developer.mozilla.org/en-US/docs/Web/CSS/::first-line)、[::grammar-error](https://developer.mozilla.org/en-US/docs/Web/CSS/::grammar-error)、[::marker](https://developer.mozilla.org/en-US/docs/Web/CSS/::marker)、[::placeholder](https://developer.mozilla.org/en-US/docs/Web/CSS/::placeholder)、[::selection](https://developer.mozilla.org/en-US/docs/Web/CSS/::selection)、[::slotted()](https://developer.mozilla.org/en-US/docs/Web/CSS/::slotted)、[::spelling-error](https://developer.mozilla.org/en-US/docs/Web/CSS/::spelling-error)
\ No newline at end of file
diff --git a/test/specs/commonmark/commonmark-spec.js b/test/specs/commonmark/commonmark-spec.js
index ec270bb831..fbbe47b321 100644
--- a/test/specs/commonmark/commonmark-spec.js
+++ b/test/specs/commonmark/commonmark-spec.js
@@ -46,7 +46,7 @@ var messenger = new Messenger();
|Entity and numeric character references | 9 of 12 | 75%|
|Code spans | 11 of 17 | 65%|
|Emphasis and strong emphasis | 79 of 128 | 61%|
-|Links | 69 of 84 | 82%|
+|Links | 68 of 84 | 81%|
|Images | 15 of 22 | 68%|
|Autolinks | 15 of 19 | 79%|
|Raw HTML | 19 of 21 | 90%|
@@ -352,7 +352,7 @@ describe('CommonMark 0.28 Links', function() {
var section = 'Links';
// var shouldPassButFails = [];
- var shouldPassButFails = [474, 478, 483, 489, 490, 491, 495, 496, 497, 499, 503, 504, 507, 508, 509];
+ var shouldPassButFails = [468, 474, 478, 483, 489, 490, 491, 495, 496, 497, 499, 503, 504, 507, 508, 509];
var willNotBeAttemptedByCoreTeam = [];