CVE-2026-87537

HIGH 8.1 ALL-YEARS

Published 2026-09-09 · Last modified 2026-09-10 · Chrome · NVD: Analyzed

Missing authorization in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via crafted network traffic. (Chromium security severity: Medium)

ELEVATED IMPACT

Severe if exploited (CVSS 8.1), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 35th percentile

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

Impact if exploited

8.1CVSS 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: No user interaction needed
⚠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

Products Chrome

Weakness (CWE)

CWE-862: Missing authorization

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/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-2026-87537 · Updated 2026-09-09T01:45:48+00:00

Known Affected Software Configurations

Vendor	Product	Version range
Google	Chrome	< 153.0.8010.36

All CVSS metrics

HIGH 8.1 v3.1 · ADP Primary
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
HIGH 8.1 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Advisories

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html Release NotesVendor AdvisoryCVE record · Chrome · Updated 2026-09-09T00:09:42.686Z
NVD · CVE-2026-87537 · Updated 2026-09-10T18:41:55.070
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87537.json vendor-advisoryRed Hat · CVE-2026-87537 · Updated 2026-09-09T01:45:48+00:00
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-74323 ADVISORYEUVD · EUVD-2026-74323

Technical & other

https://issues.chromium.org/issues/498732709 Permissions RequiredCVE record · Chrome · Updated 2026-09-09T00:09:42.686Z
NVD · CVE-2026-87537 · Updated 2026-09-10T18:41:55.070
https://access.redhat.com/security/cve/CVE-2026-87537 vendor-referenceRed Hat · CVE-2026-87537 · Updated 2026-09-09T01:45:48+00:00
https://www.cve.org/CVERecord?id=CVE-2026-87537 vendor-referenceRed Hat · CVE-2026-87537 · Updated 2026-09-09T01:45:48+00:00

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