n8n just got a CVSS 10.0 public exploit.
CVE-2026-21858 (“Ni8mare”):
unauthenticated file read → full RCE. Working PoC is circulating.
Any internet-facing n8n that missed the patch is one request away from compromise.
https://t.co/JDCsPklLK1
#Cybersecurity#AI#AISecurity #MCP #Claude #GPT #Infosec #Trending #RCE #AppSec
microsoft: Exploit Code Unporoven
me: i literally gave you a compiled PoC and also exploit code
m$: No exploit code is available, or an exploit is theoretical.
me:
🏆 Spartans silverware in the bag tonight at sunny Saughton where the @spartans_youth Under 13s defeated Edinburgh City 4-0 in the Stewart Brien Cup Final. Well done lads 👏
@Karin_Goodwin@Fionasstalker@British_Airways This happened to us. Seems like standard practice for LHR/BA. Really poor customer service and complete disregard to their passengers.
Google @AskWorkspace seems to have stopped caring. Support tickets go unanswered. Completely ignored. Must be time to accept that Microsoft is the real business solution nowadays.