# CVE-2026-91735

Chrome WebUI auth flaw allows sandbox escape and arbitrary code execution (pre-153.0.8010.47)

- Page: https://www.vulneraibility.com/cve/CVE-2026-91735
- CVSS: 8.3
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.31% (percentile 24.1)
- CISA SSVC: exploitation none, automatable no, technical impact total (assessed 2026-09-16)
- Weakness: CWE-863
- Published: 2026-09-15

## Affected versions

- Google Chrome: affected < 153.0.8010.47

A version outside these ranges is not a statement that it is unaffected.

## Impact

Sandbox escape: attacker with a compromised renderer can execute arbitrary code outside Chrome's sandbox via crafted HTML.

## Action

Immediate action required

## Recommendation

Update Chrome to 153.0.8010.47 or later immediately; limit access to untrusted content until patched.

## References

- [other] https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html
- [other] https://issues.chromium.org/issues/552416113

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.