@voydstack

VR @Synacktiv | CTF with @RMUBYGG, @Hexagonctf, @ECSC_TeamFrance 20/21/22/23/24

 France
voydstack.re
Joined August 2018
  • Tweets761
  • Following1K
  • Followers2.1K
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voydstack retweeted
Aikido
@AikidoSecurity12h
Evolving threat 🚨 CVE-2026-111497, previously known to affect Node.js (node2shell) and Python has evolved into “HTTP2Shell.” A significant blast radius. This vulnerability leaves many libraries and applications using HTTP vulnerable to pre-auth RCE via Brotli decompression. Please be aware. Fixes not yet available for all affected services. Look for Brotli (1.2.1) dependency upgrades when they become available.
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Python2Shell is also a thing now. Advisory: github.com/advisories/GHSA-9…
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voydstack retweeted
Calif
@calif_ioOct 23
Just in case it wasn’t clear: we popped the iPhone Duo on release day, adding a much needed feature, inspired by the php2shell hacker @lcfr_hax! What else there to hack? Wrong answers only.
Calif
@calif_ioOct 23
CC @pwnlambda
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voydstack retweeted
Calif
@calif_ioOct 23
CC @pwnlambda
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We've open-sourced the Hexacon 2026 Speedrun CTF challenges ! Congratulations to all the players👏See you next year 🍾
Hexacon@hexacon_frOct 22
The Hexacon 2026 Speedrun challenges are now open to everyone! How fast can you solve them? Train now for the next edition 🏆 github.com/hexacon-fr/speedr…

GitHub - hexacon-fr/speedrun-2026

Contribute to hexacon-fr/speedrun-2026 development by creating an account on GitHub.

github.com
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voydstack retweeted
pepsipu@pepsipuOct 22
i jailbroke the nintendo switch 2 so i modded cinnamoroll, peter griffin, hatsune miku, and more into Mario Kart World, a switch 2 exclusive now watch my friends and i get cooked by bots learn more and get the exploit pepsipu.com/blog/2026-10-swi…
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voydstack retweeted
Hexacon@hexacon_frOct 21
Hope you're all getting back to reality after an amazing edition of Hexacon! Thank you for your support and all the great talks. See you next year! 🗓️ 8-9 October 2027
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voydstack retweeted
Calif
@calif_ioOct 21
php2shell - A tale of two PHP remote vulnerabilities: calif.io/php2shell
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voydstack retweeted
Boris Larin@oct0xorOct 21
Andy Nguyen (@theflow0) presents at #TheSAS2026 on how he hacked the PS5 hypervisor (twice, with two amazing bugs!) and got Linux running on the console, with Steam games playable on it!!! 🤯
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voydstack retweeted
toasterpwn@toasterpwnOct 21
We've released all information from the @BSidesCbr 2026 Speedrun CTF! Congrats to stackotter for winning, and to jamie who was runner up. All challenge files, solutions, and info can be found here github.com/toasterpwn/BSides… Thanks everyone who watched, see you next year! 🚩⏱️

GitHub - toasterpwn/BSides-Canberra-2026-Speedrun-CTF-PUBLIC

Contribute to toasterpwn/BSides-Canberra-2026-Speedrun-CTF-PUBLIC development by creating an account on GitHub.

github.com
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voydstack retweeted
InfoSect@infosectcbrOct 17
Congratulations to InfoSect’s Rami on second place in @hexacon_fr’s speedrun CTF! He topped qualifying and took the final to a tiebreaker pwn challenge. A fantastic performance, we’re very proud. Congrats to abiondo on the win, and thanks to the organisers!
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Marco Bonelli@mebeimOct 16
Here at @hexacon_fr Orange Tsai just showed us how to pop calc from Edge with only logic bugs... and then how to pop Edge from calc ☠️ LMAO
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voydstack retweeted
pwn.ai
@pwn_aiOct 15
Introducing PwnEscape 🦉: a full KVM guest-to-host escape via a Linux kernel networking flaw affecting industry standard hypervisors. CVE-2026-99999 went from untrusted VM code to host-kernel memory reads, controlled writes, and root command execution. More below:
🤖 Made with AI
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voydstack retweeted
V4bel
@v4belOct 16
Galaxy S26 Ultra: untrusted_app → root. Introducing "Infinity Core": 6 vulns in the Linux kernel's core subsystems. Their impact spans Linux server LPE, container escape, and Android LPE. Details: github.com/V4bel/InfinityCor…
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voydstack retweeted
Calif
@calif_ioOct 16
Demos we presented at Hexacon in Paris today. Everything will be released in due time. 1/ Signal 1-click
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voydstack retweeted
Hexacon@hexacon_frOct 16
A brand new iPhone jailbreak has just been unveiled on stage at Hexacon by the @calif_io team 😱
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voydstack retweeted
Hexacon@hexacon_frOct 16
The Last Proof of Human Craft by Orange Tsai 🍊 (@orange_8361)
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voydstack retweeted
Synacktiv
@SynacktivOct 15
J-1 before @hexacon_fr! We’ll be at the Palais Brongniart tomorrow. Looking forward to seeing you there 🚀
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voydstack retweeted
Synacktiv
@SynacktivOct 14
🥊 #Rikugan vs #Frontkick: who wins the agentic AI showdown? Rikugan is open-source and making waves on IDA. Frontkick is built for Binary Ninja. ToolAgent or CodeAct? Aiglematth breaks down the contenders. Read the article ⬇️ synacktiv.com/en/publication…

UFC 666 : Frontkick vs Rikugan

UFC 666 : Frontkick vs Rikugan

synacktiv.com
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voydstack retweeted
Synacktiv
@SynacktivOct 13
In 2023, @Synacktiv researchers identified an authentication bypass in #Danfoss SM800 and SC255/SC355 controllers. The same vulnerability, reported again in 2025, could be linked to the recent supermarket refrigeration attack. 🔎 Authentication Bypass - Danfoss SM800 & SC255/SC355: synacktiv.com/sites/default/… 🔎 Multiple Vulnerabilities - Danfoss SM800A: synacktiv.com/sites/default/…
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