CVE-2026-9970

HIGH 8.3 ALL-YEARS

Published 2026-05-28 · Last modified 2026-05-30 · Chrome · NVD: Analyzed

Use after free in WebGL in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

ELEVATED IMPACT

Severe if exploited (CVSS 8.3), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 12th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

8.3CVSS 3.1 · HIGH · ADP

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

What an attacker needs

✓Access: Reachable over the network — no local access needed
✓Privileges: No account or privileges required
⚠User interaction: A user must take an action (click / open a file)
⚠Complexity: Needs a race window or specific setup

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Google Microsoft Apple Linux

Products Chrome Windows Macos Linux Kernel

Weakness (CWE)

CWE-416: Use after free

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References and research data (JSON)

Vendor product assessments

All currently supported Red Hat products · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present
Red Hat · CVE-2026-9970 · Updated 2026-06-28T07:47:26+00:00

Known Affected Software Configurations

Vendor	Product	Version range
Google	Chrome	< 148.0.7778.216
Google	Chrome	< 148.0.7778.215

All CVSS metrics

HIGH 8.3 v3.1 · ADP Primary
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
HIGH 8.3 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References

Advisories

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html Release NotesVendor Advisoryvendor-referenceCVE record · Chrome · Updated 2026-05-28T22:25:40.801Z
NVD · CVE-2026-9970 · Updated 2026-07-21T11:10:00.100
Red Hat · CVE-2026-9970 · Updated 2026-06-28T07:47:26+00:00
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9970.json vendor-advisoryRed Hat · CVE-2026-9970 · Updated 2026-06-28T07:47:26+00:00
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-33112 ADVISORYEUVD · EUVD-2026-33112

Technical & other

https://issues.chromium.org/issues/506653647 Permissions Requiredvendor-referenceCVE record · Chrome · Updated 2026-05-28T22:25:40.801Z
NVD · CVE-2026-9970 · Updated 2026-07-21T11:10:00.100
Red Hat · CVE-2026-9970 · Updated 2026-06-28T07:47:26+00:00
https://access.redhat.com/security/cve/CVE-2026-9970 vendor-referenceRed Hat · CVE-2026-9970 · Updated 2026-06-28T07:47:26+00:00
https://www.cve.org/CVERecord?id=CVE-2026-9970 vendor-referenceRed Hat · CVE-2026-9970 · Updated 2026-06-28T07:47:26+00:00
https://nvd.nist.gov/vuln/detail/CVE-2026-9970 vendor-referenceRed Hat · CVE-2026-9970 · Updated 2026-06-28T07:47:26+00:00

Sources: NVD · CVE.org · All sources and attribution · EPSS