diff --git a/lib/shared/markdown.js b/lib/shared/markdown.js
--- a/lib/shared/markdown.js
+++ b/lib/shared/markdown.js
@@ -85,9 +85,6 @@
 const codeBlockRegex: RegExp = /^(?: {4}[^\n]*\n*?)+(?!\n* {4}[^\n])(?:\n|$)/;
 const codeBlockStripTrailingNewlineRegex: RegExp = /^((?: {4}[^\n]*\n*?)+)(?!\n* {4}[^\n])(?:\n|$)/;
 
-const blockQuoteRegex: RegExp = /^( *>[^\n]+(?:\n[^\n]+)*)(?:\n|$)/;
-const blockQuoteStripFollowingNewlineRegex: RegExp = /^( *>[^\n]+(?:\n[^\n]+)*)(?:\n|$){2}/;
-
 const urlRegex: RegExp = /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/i;
 
 const mentionRegex = new RegExp(`^(@(${oldValidUsernameRegexString}))\\b`);
@@ -219,6 +216,42 @@
   return match;
 }
 
+const blockQuoteRegex: RegExp = /^( *>[^\n]+(?:\n[^\n]+)*)(?:\n|$)/;
+const blockQuoteStripFollowingNewlineRegex: RegExp = /^( *>[^\n]+(?:\n[^\n]+)*)(?:\n|$){2}/;
+const maxNestedQuotations = 5;
+
+// Custom match and parse functions implementation for block quotes
+// to allow us to specify quotes parsing depth
+// to avoid too many recursive calls and e.g. app crash
+function matchBlockQuote(quoteRegex: RegExp): MatchFunction {
+  const match = (source: string, state: State) => {
+    if (
+      state.inline ||
+      (state?.quotationsDepth && state.quotationsDepth >= maxNestedQuotations)
+    ) {
+      return null;
+    }
+    return quoteRegex.exec(source);
+  };
+  match.regex = quoteRegex;
+  return match;
+}
+
+function parseBlockQuote(
+  capture: Capture,
+  parse: Parser,
+  state: State,
+): UnTypedASTNode {
+  const content = capture[1].replace(/^ *> ?/gm, '');
+  const currentQuotationsDepth = state?.quotationsDepth ?? 0;
+  return {
+    content: parse(content, {
+      ...state,
+      quotationsDepth: currentQuotationsDepth + 1,
+    }),
+  };
+}
+
 export {
   paragraphRegex,
   paragraphStripTrailingNewlineRegex,
@@ -231,6 +264,8 @@
   codeBlockStripTrailingNewlineRegex,
   fenceRegex,
   fenceStripTrailingNewlineRegex,
+  matchBlockQuote,
+  parseBlockQuote,
   jsonMatch,
   jsonPrint,
   matchList,
diff --git a/native/markdown/rules.react.js b/native/markdown/rules.react.js
--- a/native/markdown/rules.react.js
+++ b/native/markdown/rules.react.js
@@ -215,19 +215,10 @@
     blockQuote: {
       ...SimpleMarkdown.defaultRules.blockQuote,
       // match end of blockQuote by either \n\n or end of string
-      match: SimpleMarkdown.blockRegex(
+      match: SharedMarkdown.matchBlockQuote(
         SharedMarkdown.blockQuoteStripFollowingNewlineRegex,
       ),
-      parse(
-        capture: SharedMarkdown.Capture,
-        parse: SharedMarkdown.Parser,
-        state: SharedMarkdown.State,
-      ) {
-        const content = capture[1].replace(/^ *> ?/gm, '');
-        return {
-          content: parse(content, state),
-        };
-      },
+      parse: SharedMarkdown.parseBlockQuote,
       // eslint-disable-next-line react/display-name
       react: (
         node: SharedMarkdown.SingleASTNode,
diff --git a/web/markdown/rules.react.js b/web/markdown/rules.react.js
--- a/web/markdown/rules.react.js
+++ b/web/markdown/rules.react.js
@@ -78,17 +78,8 @@
     blockQuote: {
       ...SimpleMarkdown.defaultRules.blockQuote,
       // match end of blockQuote by either \n\n or end of string
-      match: SimpleMarkdown.blockRegex(SharedMarkdown.blockQuoteRegex),
-      parse(
-        capture: SharedMarkdown.Capture,
-        parse: SharedMarkdown.Parser,
-        state: SharedMarkdown.State,
-      ) {
-        const content = capture[1].replace(/^ *> ?/gm, '');
-        return {
-          content: parse(content, state),
-        };
-      },
+      match: SharedMarkdown.matchBlockQuote(SharedMarkdown.blockQuoteRegex),
+      parse: SharedMarkdown.parseBlockQuote,
     },
     inlineCode: SimpleMarkdown.defaultRules.inlineCode,
     em: SimpleMarkdown.defaultRules.em,