Exploit discussion active in current signal (1 latest mentions)
Recommended action window: High priority (within 72h)
NVD description
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
Priority
MEDIUM
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
| Date | Total | Labels |
|---|
| 2026-02-24 | 2 | Disclosure2 |
| 2026-03-01 | 1 | Disclosure1 |
| 2026-03-06 | 1 | PoC1 |
| 2026-03-08 | 4 | Disclosure2General1PoC1 |
| 2026-03-09 | 1 | General1 |
| 2026-03-10 | 3 | Exploit2PoC1 |
| 2026-03-11 | 1 | General1 |
| 2026-04-04 | 1 | PoC1 |
| 2026-05-02 | 2 | General1PoC1 |
| 2026-05-11 | 1 | Disclosure1 |
| 2026-08-21 | 2 | Exploit1PoC1 |
| 2026-08-25 | 1 | General1 |
Reverse engineering Claude's CVE-2026-2796 exploit https://red.anthropic.com/2026/exploit/
Post summary
The note signals that an exploit for CVE‑2026‑2796 has been reverse engineered and links to further details, but offers no additional technical context or evidence of in‑the‑wild activity.
Introducing What The Claude: Browser Edition. A series where we pick apart browser bugs found/reported by Claude. First up: CVE-2026-2796, a SpiderMonkey Wasm import bug that leads to addrof/fakeobj/read-write. https://github.com/str8outtaheap/publications/tree/main/research/firefox/CVE-2026-2796-wasm-call-bind-import-confusion
Post summary
The post announces CVE-2026-2796 and shares a GitHub repository likely containing a proof‑of‑concept exploit demonstrating addrof/fakeobj/read‑write capabilities in SpiderMonkey’s WebAssembly processing.
A PoC/exploit has been discovered for vulnerability CVE-2026-2796 Vendor: Mozilla Product: Firefox Description: JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. Link: https://github.com/SneakyNachos/CVE-2026-2796-escape-wasm-by-using-wasm https://github.com/sneakynachos/cve-2026-2796-and-cve-2026-2768-escape-the-wasm-box #dbugs_vuln
Post summary
The post announces a PoC/exploit for CVE-2026-2796, linking to GitHub code and noting the vulnerability was patched in Firefox 148 and Thunderbird 148.
So, @AnthropicAI used 350 Claude's rounds to create a full exploit chain for CVE-2026-2796 (which is really cool). http://red.anthropic.com/2026/exploit/ But, I think the cool part of the story is that to confirm that bug, you only need 13minutes and $11 to get some real evidence :D https://t.co/eQKdbW9ORo
Post summary
Anthropic AI demonstrated a full exploit chain for CVE‑2026‑2796, linking to the PoC and noting that confirming the bug takes only 13 minutes and $11.
Reverse engineering Claude's CVE-2026-2796 exploit https://red.anthropic.com/2026/exploit/
Post summary
The post signals that a functional exploit for CVE-2026-2796 is publicly available via a link, but provides no details about active attacks, patches, or vulnerability specifics.
#exploit #reversing 1⃣ Getting a Shell on the Tapo C260 Camera (CVE-2026-0651, CVE-2026-0652, CVE-2026-0653) https://spaceraccoon.dev/getting-shell-tapo-c260-webcam // Reverse-engineered Tapo C260 firmware reveals vulnerabilities enabling local file disclosure and full RCE through path traversal and configuration manipulation 2⃣ nginx UI Vulnerability https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-g9w5-qffc-6762 // CVE-2026-27944 (9.8/10) 3⃣ Patch diff to SYSTEM https://www.elastic.co/security-labs/patch-diff-to-system // Researchers utilized LLMs and patch diffing to develop a reliable privilege escalation exploit for Windows DWM via a UAF, demonstrating AI's growing role in vulnerability discovery and exploitation 4⃣ Reverse engineering Claude's CVE-2026-2796 exploit https://red.anthropic.com/2026/exploit ]-> Claude Code skill to support Android app's reverse engineering https://github.com/SimoneAvogadro/android-reverse-engineering-skill
Post summary
The post shares PoC and exploit details for several CVEs—including RCE on the Tapo C260 camera and a high‑severity nginx UI flaw—alongside AI‑assisted privilege escalation research.
🛡️ #ExploitGrid Daily #Threat Digest Critical Exploits disclosed today: #CVE-2025-55182 CVE-2026-2796 CVE-2026-2768 CVE-2026-34910 CVE-2026-34909 CVE-2026-58231 CVE-2026-48907 ..🧵👇
Post summary
The post lists several critical CVEs disclosed today but provides no additional details, PoC, or active exploitation information.
🔴 Mozilla Firefox'un SpiderMonkey JavaScript motorunda bulunan (Thunderbird'de de kullanılan) WebAssembly güvenlik açığını (CVE-2026-2796) istismar eden bir PoC exploit yayınlandı. Zafiyet, Şubat 2026'da yayınlanan Firefox 148 ile yamalandı. https://github.com/SneakyNachos/CVE-2026-2796-escape-wasm-by-using-wasm
Post summary
A PoC exploit for CVE‑2026‑2796 targeting SpiderMonkey’s WebAssembly engine has been released, and the vulnerability was fixed in Firefox 148.
Top 5 Trending CVEs: 1 - CVE-2024-3094 2 - CVE-2025-43300 3 - CVE-2026-2796 4 - CVE-2026-1602 5 - CVE-2025-11411 #cve #cvetrends #cveshield #cybersecurity https://www.cveshield.com/dashboard
Post summary
The post lists five trending CVE identifiers without providing technical details, exploitation status, or remediation information.
@HipnoAmadeus @trianglerosmi @Munson_Royy @OfficialPCMR "more secure" #CVE-2026-2796: JIT miscompilation in the JavaScript WebAssembly, allowing attackers to use arbitrary read/write and code execution. Pwn2Own 2026: A demonstration exploited a 0-day using an out-of-bounds write in promise.allSettled, leading to remote code execution.
Post summary
The tweet announces CVE-2026-2796, a JavaScript WebAssembly JIT miscompilation that enables arbitrary read/write and RCE, and notes a Pwn2Own demonstration exploiting it.
@tiredhungryangr One? CVE-2026-2796, CVE-2026-24881, CVE-2026-24882, CVE-2025-32988, CVE-2025-32989, CVE-2025-64175, CVE-2026-25242, CVE-2026-28357, CVE-2026-28359, CVE-2026-26216, CVE-2026-26217, CVE-2026-25946, CVE-2026-32110, CVE-2026-30930, CVE-2026-30928, CVE-2026-32596...
Post summary
The message merely lists several CVE identifiers without providing any additional context, details, or actionable information.
How it works: Claude explores the codebase → spots a bug → task verifier checks if an exploit runs → iterates. 112 unique reports submitted. CVE-2026-2796 (CVSS 9.8) — JIT miscompilation in Firefox's WebAssembly engine — came out of this loop. #Firefox
Post summary
A high‑severity JIT miscompilation bug (CVE‑2026‑2796) in Firefox’s WebAssembly engine was discovered through an automated bug‑finding loop; no exploit, patch, or active use is reported.
The worst one: CVE-2026-2796, scored CVSS 9.8/10. A JIT miscompilation bug in Firefox's JavaScript engine. Claude didn't just find it — it wrote a full exploit chain: use-after-free → type confusion → memory leak → arbitrary read/write → code execution A human researcher would typically need weeks to months for this.
Post summary
Researchers uncovered a critical JIT miscompilation flaw in Firefox (CVE‑2026‑2796) and already produced a full exploit chain, underscoring its severe code execution risk.
claude opus 4.6 found 22 firefox vulnerabilities in 14 days. 14 high-severity. then exploited one — CVE-2026-2796, a JIT miscompilation bug — in 20 minutes. no human pentester. just an LLM scanning a browser codebase. anthropic + mozilla partnership. all patched in firefox 148.
Post summary
An LLM (Claude Opus) scanned Firefox, found 22 high‑severity bugs, exploited one (CVE‑2026‑2796 – a JIT miscompilation bug) in 20 minutes, and Mozilla has patched all of them in Firefox 148.
🚨 𝐍𝐞𝐰 𝐯𝐮𝐥𝐧𝐞𝐫𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐚𝐧𝐚𝐥𝐲𝐬𝐢𝐬 𝐩𝐮𝐛𝐥𝐢𝐬𝐡𝐞𝐝! AI-assisted vulnerability discovery unfolds as Anthropic's Claude Opus 4.6 uncovers CVE-2026-2796 in Firefox, illustrating AI's pivotal role in modern security research for defenders worldwide. 🔗 Get the complete details → https://www.purple-ops.io/cybersecurity-threat-intelligence-blog/cve-2026-2796-firefox-audit/ Join the discussion and tell us what you think!
Post summary
The post announces a new AI-discovered vulnerability, CVE-2026-2796 in Firefox, and directs readers to a detailed analysis link.
근데 재밌는 건 22개 찾아놓고 실제 exploit 성공한 건 2건뿐이었다는 거.. 찾는 거랑 뚫는 건 아직 갭이 큼. 그래도 CVE-2026-2796 같은 경우 CVSS 9.8짜리 JIT 취약점인데 이걸 2주만에 찾았다는 게 솔직히 무섭긴 함. 기존 보안 업체들이 수혜 다 가져간다기보단 AI 보안 감사 전문 스타트업이 새로 치고 들어올 듯
Post summary
The text highlights that out of 22 discovered vulnerabilities, only 2 were successfully exploited and notes the rapid discovery of CVE-2026-2796, but provides no evidence of exploitation, patches, or PoC.
Anthropic’s "Reverse engineering Claude’s CVE-2026-2796 exploit" details how Claude Opus 4.6 independently identified and developed a POC exploit for a high-severity JIT miscompilation in Firefox's JavaScript engine, signaling a shift where AI can now perform end-to-end vulnerability research. https://red.anthropic.com/2026/exploit/
Post summary
Anthropic’s Claude generated a proof‑of‑concept exploit for a high‑severity Firefox JIT miscompilation, illustrating the growing capability of AI in end‑to‑end vulnerability research.
CVE-2026-2796 (CVSS:9.8, CRITICAL) is Modified. JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and Thunderbird < ..https://nvd.nist.gov/vuln/detail/CVE-2026-2796 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre
Post summary
The post announces CVE-2026-2796, a critical JIT miscompilation flaw in Firefox and Thunderbird’s WebAssembly component, with CVSS 9.8, but provides no PoC, exploit, or patch details.
🚨*CVE* CVE-2026-2796 JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148. https://www.cve.org/CVERecord?id=CVE-2026-2796 ----- Traducción: CVE-2026-2796 JIT malcompilación en el componente JavaScript: WebAssembly. Esta vulne… http://infoflow.cloud`
Post summary
The text announces CVE-2026-2796, a JIT miscompilation vulnerability in Firefox’s WebAssembly component affecting versions below 148.
CVE-2026-2796 JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148. https://www.cve.org/CVERecord?id=CVE-2026-2796
Post summary
A JIT miscompilation vulnerability (CVE-2026-2796) affecting Firefox versions below 148 is disclosed, with a brief description of the affected component.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | mozilla | firefox | - | - | - |
| App | mozilla | thunderbird | - | - | - |