CVE-2026-4447Disclosure(apple / chrome)

LOWCVSS 8.8 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Patch apple chrome systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Inappropriate implementation in V8 in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

apple CVEs Back to dashboard

3.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html

Other references

https://issues.chromium.org/issues/486657483

Weakness type (CWE)

CWE-693

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

chrome
linux_kernel
macos
windows

Threat summary

Public PoC is present in monitored signal
Patch or workaround signal is available
6 mentions across 4 observed days
Momentum state: stable

What's happening

PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 2 signals
Technical details provided in 3 signals
Disclosure: 2 classified signals
Exploit: 1 classified signal
Peaked 3d ago at 3 mentions (2026-03-20); latest day: 1
6 total mentions across 4 days

Affected systems

Vendors

apple google linux microsoft

Products

chromelinux_kernelmacoswindows

1 version affected across 4 products

Deep dive

Activity timeline6 mentions / 4d

Signal classification4 categories

Disclosure

233.3%

Patch

233.3%

Exploit

116.7%

General

116.7%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-20	3	Disclosure1Patch2
2026-06-06	1	Exploit1
2026-06-19	1	Disclosure1
2026-07-25	1	General1

Full discourse6 posts

kqx@kqx_io202d
Patch
"Claude find a 0day, make no mistakes" CVE-2026-4447 https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html https://t.co/STxqnBvGs5
Post summary
The post references CVE‑2026‑4447, linking to a Chrome stable channel update that serves as a vendor patch, but it does not provide PoC, exploit code, or technical vulnerability details.
745060526285.2K
767 followersView on X
kqx@kqx_io124d
Exploit
Pwning V8CTF with a 0day in Chrome thanks to Phi untagging. Read here: https://kqx.io/post/cve-2026-4447/ https://t.co/eSpfeah7I4
Post summary
A 0‑day vulnerability (CVE-2026-4447) was exploited to win V8CTF in Chrome via Phi untagging, with further details linked in the post.
33412108816.3K
985 followersView on X
0xor0ne@0xor0ne75d
General
Analysis of a Chrome V8 untagging vulnerability (CVE-2026-4447) (@kqx_io) https://kqx.io/post/cve-2026-4447/ #infosec https://t.co/ycWRzUT3HO
Post summary
The tweet directs to an analysis of CVE‑2026‑4447, a Chrome V8 untagging vulnerability, but does not provide proof‑of‑concept code, exploit details, active exploitation, patches, or false‑positive claims.
03101739910.5K
93.7K followersView on X
0xor0ne@0xor0ne112d
Disclosure
Analysis of a Chrome V8 Maglev Phi untagging vulnerability (CVE-2026-4447) https://kqx.io/post/cve-2026-4447/ Credits @kqx_io #infosec https://t.co/fPhqJ0hPJ7
Post summary
This post links to an analysis of CVE-2026-4447, describing it as a Chrome V8 Maglev Phi untagging vulnerability, but it does not provide PoC, exploit code, or mitigation details.
113096426.0K
93.0K followersView on X
xvonfers@xvonfers202d
Patch
(CVE-2026-4447)[486657483][maglev]Inappropriate implementation in V8. https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html Reported by Erge
Post summary
The snippet references CVE-2026-4447, mentions an inappropriate implementation in V8, and provides a link to a Chrome release page that implies a patch, but it lacks PoC, exploit, or detailed vulnerability data.
100731.5K
4.9K followersView on X
CVE@CVEnew203d
Disclosure
CVE-2026-4447 Inappropriate implementation in V8 in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page… https://www.cve.org/CVERecord?id=CVE-2026-4447
Post summary
The text announces CVE‑2026‑4447, describing a V8 implementation flaw that enables remote code execution in Chrome via crafted HTML. No PoC, exploit, or patch details are provided.
00000101
56.8K followersView on X

CPE platform detail4 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

4 of 4 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	apple	macos	-	-	-
App	google	chrome	-	-	-
OS	linux	linux_kernel	-	-	-
OS	microsoft	windows	-	-	-

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What researchers are saying

CVE-2026-4447

0xor0ne[verified]@0xor0neGeneral

The tweet directs to an analysis of CVE‑2026‑4447, a Chrome V8 untagging vulnerability, but does not provide proof‑of‑concept code, exploit details, active exploitation, patches, or false‑positive claims.

0xor0ne[verified]@0xor0neDisclosure

This post links to an analysis of CVE-2026-4447, describing it as a Chrome V8 Maglev Phi untagging vulnerability, but it does not provide PoC, exploit code, or mitigation details.

kqx@kqx_ioPatch

The post references CVE‑2026‑4447, linking to a Chrome stable channel update that serves as a vendor patch, but it does not provide PoC, exploit code, or technical vulnerability details.

kqx@kqx_ioExploit

A 0‑day vulnerability (CVE-2026-4447) was exploited to win V8CTF in Chrome via Phi untagging, with further details linked in the post.

xvonfers@xvonfersPatch

The snippet references CVE-2026-4447, mentions an inappropriate implementation in V8, and provides a link to a Chrome release page that implies a patch, but it lacks PoC, exploit, or detailed vulnerability data.

CVE@CVEnewDisclosure

The text announces CVE‑2026‑4447, describing a V8 implementation flaw that enables remote code execution in Chrome via crafted HTML. No PoC, exploit, or patch details are provided.