Top Tweets for #HTTP1MustDie
Google Cloud Platform was vulnerable to a HTTP desync attack leading to "responses being misrouted between recipients for certain third-party models". Aka your LLM response goes to someone else. The Expect header strikes again! #http1mustdie

Did you know? The newline handling quirks from The Tangled Web by @lcamtuf still work in modern Chrome, if the server doesnβt support HTTP/2. An unsafe Nginx redirect config can let you inject cookies via /%0dset-cookie: foo=bar. #HTTP1MustDie

24 million websites compromised. π§΅
PortSwigger's Director of Research, James Kettle (@albinowax), & AppSec expert John Hammond (@_JohnHammond) reveal the fatal flaws in HTTP/1.1 that attackers are abusing right now.
#HTTP1MustDie

The team will be at @defcon again today!
Don't miss out on your free HTTP/1.1 Must Die t-shirt in the Bug Bounty Village (while stocks last...π ).
#DEFCON33 #BugBountyVillage #HTTP1MustDie #PortSwigger #BurpSuite

The ground-breaking new research release HTTP/1.1 Must Die! The Desync Endgame will be hitting @defcon this afternoon at 4.30pm.
Join the movement π https://t.co/pIOerQPxTt
#HTTP1MustDie #DEFCON33
The ground-breaking new research release HTTP/1.1 Must Die! The Desync Endgame will be hitting @defcon this afternoon at 4.30pm.
Join the movement π https://t.co/GcLsYQGOyK
#HTTP1MustDie #DEFCON33
Today at DEF CON 33 - don't miss @albinowax's new HTTP/1.1 Must Die talk!
We're proudly sponsoring the @BugBountyDEFCON and are excited to be this year's CTF triage partner. Drop by, say hello, pick up some swag, and have fun!
#DEFCON33 #BurpOnTour2025 #HTTP1MustDie

Missed @albinowax's new HTTP/1.1 Must Die! The Desync Endgame at Black Hat USA yesterday?
Catch it at 4.30pm tomorrow at @defcon!
Learn more π https://t.co/GcLsYQGOyK
#HTTP1MustDie
π¨ BlackHat Research Releases!
Brand new to the BApp Store:
π HTTP Hacker
Major updates:
π₯ WebSocket Turbo Intruder
π₯ HTTP Request Smuggler
π₯ Turbo Intruder
#HTTP1MustDie #BlackHatUSA #BHUSA
5 hours until the desync endgame begins.
https://t.co/sGe3a0tfI2
#HTTP1MustDie
5 hours until the desync endgame begins.
https://t.co/pIOerQPxTt
#HTTP1MustDie
5 hours until the desync endgame begins.
https://t.co/GcLsYQGOyK
#HTTP1MustDie
Didn't grab a HTTP/1.1 Must Die! tee before they all went at @BSidesLV?
We'll be dishing more out at DEF CON's Bug Bounty Village later this week! @BugBountyDEFCON
#HTTP1MustDie #BSidesLV #DEFCON33
Tomorrow.
Are you ready? β οΈ
https://t.co/sGe3a0tfI2
#HTTP1MustDie
Tomorrow.
Are you ready? β οΈ
https://t.co/pIOerQPxTt
#HTTP1MustDie
Tomorrow.
Are you ready? β οΈ
https://t.co/GcLsYQGOyK
#HTTP1MustDie
24 hours until the desync endgame begins.
https://t.co/QFRLosb8Gc
#HTTP1MustDie
24 hours until the desync endgame begins.
https://t.co/i5xbMfxZGs
#HTTP1MustDie
24 hours until the desync endgame begins.
https://t.co/7HK1QViQAr
#HTTP1MustDie
It's nearly time... π
https://t.co/sGe3a0tfI2
#HTTP1MustDie
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