CVE-2026-6306: Heap buffer overflow in PDFium
Chromium: CVE-2026-6306 Heap buffer overflow in PDFium
Other sources
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)
— MITRE
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 147.0.7727.101 - Upgrade
Upgrade
Chromium / Google Chrome (Chromium-based)to a version that resolves this vulnerability.Fixed in 147.0.7727.101
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-6296
- CVE-2026-6297
- CVE-2026-6298
- CVE-2026-6299
- CVE-2026-6358
- CVE-2026-6359
- CVE-2026-6300
- CVE-2026-6301
- CVE-2026-6302
- CVE-2026-6303
- CVE-2026-6304
- CVE-2026-6305
- CVE-2026-6307
- CVE-2026-6308
- CVE-2026-6309
- CVE-2026-6360
- CVE-2026-6310
- CVE-2026-6311
- CVE-2026-6312
- CVE-2026-6313
- CVE-2026-6314
- CVE-2026-6315
- CVE-2026-6316
- CVE-2026-6361
- CVE-2026-6362
- CVE-2026-6317
- CVE-2026-6363
- CVE-2026-6318
- CVE-2026-6319
- CVE-2026-6364
Frequently Asked Questions
What is the severity of CVE-2026-6306?
CVE-2026-6306 has a high severity rating due to the potential for remote code execution.
How do I fix CVE-2026-6306?
To fix CVE-2026-6306, update Google Chrome to version 147.0.7727.101 or later.
What vulnerability does CVE-2026-6306 address?
CVE-2026-6306 addresses a heap buffer overflow vulnerability in PDFium that could allow arbitrary code execution.
Which software versions are affected by CVE-2026-6306?
Versions of Google Chrome prior to 147.0.7727.101 are affected by CVE-2026-6306.
Which platforms are impacted by CVE-2026-6306?
CVE-2026-6306 impacts Google Chrome and Chromium-based Microsoft Edge on Windows, macOS, and Linux.