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Rocket.Chat: SSRF via improper validation after DNS name resolution in the link-preview feature

🗓️ 22 Oct 2025 05:23:48Reported by button142857Type 
hackerone
 hackerone
🔗 hackerone.com👁 13 Views

Rocket.Chat 7.11.0 link-preview DNS flaw enables internal host access via server side forgery.

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