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Secure the planet | YC S26

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GhostLock (CVE-2026-43499) is a 15yr old kernel 0-day we used in IonStack full chain exploit. Everything around you, as long as it runs Linux, from IoT to mobile to desktop, is affected. Read how we won $92,337 bug bounty with GhostLock and see our exploit on Github. Link below

GhostLock (CVE-2026-43499) is a 15yr old kernel 0-day we used in IonStack full chain exploit. Everything around you, as long as it runs Linux, from IoT to mobile to desktop, is affected. Read how we won $92,337 bug bounty with GhostLock and see our exploit on Github. Link below

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Introducing nginx-poolslip, a fresh RCE for the the latest nginx release 1.31.0. nginx-rift has been patched, but our security agent Vega has found a new 0 day. We will release the full technical writeup with ASLR bypass 30 days after the patch on

Introducing nginx-poolslip, a fresh RCE for the the latest nginx release 1.31.0. nginx-rift has been patched, but our security agent Vega has found a new 0 day. We will release the full technical writeup with ASLR bypass 30 days after the patch on

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Since V8 had heap sandbox, Chrome renderer RCE usually means chaining 2 bugs Today we bring the Spear of Longinus 1 bug, 100% success, no heap spray, found in 40+ major versions, arbitrary renderer read/write + V8 sandbox escape Our CVE-2026-6307 writeup

Since V8 had heap sandbox, Chrome renderer RCE usually means chaining 2 bugs Today we bring the Spear of Longinus 1 bug, 100% success, no heap spray, found in 40+ major versions, arbitrary renderer read/write + V8 sandbox escape Our CVE-2026-6307 writeup

49,495 Aufrufe

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Nebula Security is now backed by Y Combinator. We’re celebrating by bringing you the world’s first Android 17 root demo — “IonStack”, a url click can let attacker fully control your phone. This is not only an Android root demo. We’re bringing you a full chain browser-to-kernel exploit with two 0-day vulnerabilities affecting Firefox before v151.0.2 and all Linux distros in 15 years. "IonStack" demonstrates how bad actors can control your phone by sending a malicious URL, but good news, Nebula Security found it before attackers do. Both 0-day were found by our code scanning agent, VEGA, overshadowing any vulnerabilities found by Mythos or any scanner you name it. VEGA has demonstrated its extraordinary capability in finding critical bugs in the world’s most complicated software: operating systems and browsers. It can spot the same vulnerabilities in your codebase too. VEGA support full scan and incremental scan that can integrated into your CI/CD flow. We launched VEGA within YC companies and received overwhelmingly positive feedback. Now it is open to all enterprise customers in private beta. Book a demo with us:

Nebula Security is now backed by Y Combinator. We’re celebrating by bringing you the world’s first Android 17 root demo — “IonStack”, a url click can let attacker fully control your phone. This is not only an Android root demo. We’re bringing you a full chain browser-to-kernel exploit with two 0-day vulnerabilities affecting Firefox before v151.0.2 and all Linux distros in 15 years. "IonStack" demonstrates how bad actors can control your phone by sending a malicious URL, but good news, Nebula Security found it before attackers do. Both 0-day were found by our code scanning agent, VEGA, overshadowing any vulnerabilities found by Mythos or any scanner you name it. VEGA has demonstrated its extraordinary capability in finding critical bugs in the world’s most complicated software: operating systems and browsers. It can spot the same vulnerabilities in your codebase too. VEGA support full scan and incremental scan that can integrated into your CI/CD flow. We launched VEGA within YC companies and received overwhelmingly positive feedback. Now it is open to all enterprise customers in private beta. Book a demo with us:

Nebula Security

219,333 Aufrufe • vor 1 Monat

Here goes nginx-quicburst (CVE-2026-42530), a new RCE in Nginx discovered by our security agent VEGA and demonstrated by Nebula Security. This is only the third NGINX vulnerability since 2014 to receive NGINX’s “major” severity rating. If you use Nginx 1.31 with QUIC enabled, we recommend upgrading to the latest version. This bug has been patched in the latest Nginx release. We will publish the technical writeup, including the ASLR bypass, on July 18 together with the previous nginx-poolslip writeup.

Here goes nginx-quicburst (CVE-2026-42530), a new RCE in Nginx discovered by our security agent VEGA and demonstrated by Nebula Security. This is only the third NGINX vulnerability since 2014 to receive NGINX’s “major” severity rating. If you use Nginx 1.31 with QUIC enabled, we recommend upgrading to the latest version. This bug has been patched in the latest Nginx release. We will publish the technical writeup, including the ASLR bypass, on July 18 together with the previous nginx-poolslip writeup.

Nebula Security

90,897 Aufrufe • vor 1 Monat

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