CVE-2026-6306Disclosure(apple / chrome)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch apple chrome systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)

apple CVEs Back to dashboard

1.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html

Other references

https://issues.chromium.org/issues/496907110

Weakness type (CWE)

CWE-122

Priority

LOW

Exploitation

NONE

PoC

NONE

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

Patch or workaround signal is available
6 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 3 signals
Technical details provided in 6 signals
Disclosure: 4 classified signals
Peaked 1d ago at 5 mentions (2026-04-16); latest day: 1
6 total mentions across 2 days

Affected systems

Vendors

apple google linux microsoft

Products

chromelinux_kernelmacoswindows

1 version affected across 4 products

Deep dive

Activity timeline6 mentions / 2d

Signal classification2 categories

Disclosure

466.7%

Patch

233.3%

Referenced assets5 URLs

By indicator

Classification over time

Date	Total	Labels

2026-04-16	5	Disclosure4Patch1
2026-04-17	1	Patch1

Full discourse6 posts

White Rabbitx 🏴‍☠️@TheRabbitPy175d
Patch
📄 CVE‑2026‑6306 – Google Chrome PDFium heap overflow (High): In Google Chrome prior to 147.0.7727.101, a heap buffer overflow in PDFium’s PDF parsing lets remote attackers trigger out‑of‑bounds writes by luring a user into opening a malicious PDF, enabling code execution in the PDF renderer context. CVSS 8.8 (v3.0), published 2026‑04‑16; fixed in Chrome 147.0.7727.101, so update Chrome/Chromium‑based browsers immediately. https://www.tenable.com/cve/CVE-2026-6306 #CVE20266306 #Chrome #PDFium #RCE #BrowserSecurity
Post summary
CVE-2026-6306 is a heap overflow in Chrome’s PDFium component that allows remote code execution via malicious PDFs. Google has released a patch in Chrome 147.0.7727.101, and users are advised to update immediately.
1001014
855 followersView on X
White Rabbitx 🏴‍☠️@TheRabbitPy175d
Disclosure
📄 CVE‑2026‑6306 – Google Chrome PDFium heap overflow (High): In Google Chrome prior to 147.0.7727.101, a heap buffer overflow in PDFium’s PDF parsing lets remote attackers trigger out‑of‑bounds writes by luring a user into opening a malicious PDF, enabling code execution in the PDF renderer context. CVSS 8.8 (v3.0), published 2026‑04‑16; fixed in Chrome 147.0.7727.101, so update Chrome/Chromium‑based browsers immediately. https://www.tenable.com/cve/CVE-2026-6306 #CVE20266306 #Chrome #PDFium #RCE #BrowserSecurity
Post summary
CVE‑2026‑6306 is a heap buffer overflow in Google Chrome’s PDFium component that enables remote code execution via malicious PDFs; the issue is fixed in Chrome 147.0.7727.101 and users are advised to update immediately.
1001011
855 followersView on X
CVE@CVEnew175d
Disclosure
CVE-2026-6306 Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Ch… https://www.cve.org/CVERecord?id=CVE-2026-6306
Post summary
This entry announces a heap buffer overflow in PDFium (CVE‑2026‑6306) that permits remote code execution when a PDF is parsed, offering a concise disclosure of the vulnerability.
00010128
57.2K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds176d
Disclosure
CVE-2026-6306 Heap Buffer Overflow in PDFium in Google Chrome Prior to 147.0.7727.101 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-6306
Post summary
The text announces a heap buffer overflow vulnerability in Chrome's PDFium component, providing basic technical details without any mention of exploitation, mitigation, or PoC.
0001046
4.0K followersView on X
WindowsForum@windowsforum174d
Patch
🚨 CVE-2026-6306: PDFium heap overflow… because nothing says “secure browsing” like letting a PDF take your browser hostage. Update Chrome/Edge ASAP—Windows can’t sandbox everything. #WindowsForum https://windowsforum.com/threads/cve-2026-6306-patch-pdfium-heap-overflow-in-chrome-147-and-edge-asap.413833/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #MicrosoftEdgePatching #PdfiumSecurity #Cve20266306
Post summary
The post highlights CVE‑2026‑6306, a PDFium heap overflow, urging users to update Chrome/Edge to mitigate the risk, but provides no PoC, exploit code, or evidence of active attacks.
0000059
1.1K followersView on X
Infoflowcloud@infoflowcloud175d
Disclosure
🚨*CVE* CVE-2026-6306 Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Ch… https://www.cve.org/CVERecord?id=CVE-2026-6306 ----- Traducción: CVE-2026-6306 Des… http://infoflow.cloud`
Post summary
The message announces CVE-2026-6306, a heap buffer overflow in Chrome’s PDFium component that permits remote code execution through crafted PDF files.
0000029
71 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-2026-6306

White Rabbitx 🏴‍☠️[verified]@TheRabbitPyPatch

CVE-2026-6306 is a heap overflow in Chrome’s PDFium component that allows remote code execution via malicious PDFs. Google has released a patch in Chrome 147.0.7727.101, and users are advised to update immediately.

White Rabbitx 🏴‍☠️[verified]@TheRabbitPyDisclosure

CVE‑2026‑6306 is a heap buffer overflow in Google Chrome’s PDFium component that enables remote code execution via malicious PDFs; the issue is fixed in Chrome 147.0.7727.101 and users are advised to update immediately.

WindowsForum[verified]@windowsforumPatch

The post highlights CVE‑2026‑6306, a PDFium heap overflow, urging users to update Chrome/Edge to mitigate the risk, but provides no PoC, exploit code, or evidence of active attacks.

CVE@CVEnewDisclosure

This entry announces a heap buffer overflow in PDFium (CVE‑2026‑6306) that permits remote code execution when a PDF is parsed, offering a concise disclosure of the vulnerability.

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

The text announces a heap buffer overflow vulnerability in Chrome's PDFium component, providing basic technical details without any mention of exploitation, mitigation, or PoC.

Infoflowcloud@infoflowcloudDisclosure

The message announces CVE-2026-6306, a heap buffer overflow in Chrome’s PDFium component that permits remote code execution through crafted PDF files.