# CVE-2026-91732

Chrome AppManifest auth bypass allows same-origin policy bypass via crafted HTML

- Page: https://www.vulneraibility.com/cve/CVE-2026-91732
- CVSS: 8.1
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.26% (percentile 17.9)
- CISA SSVC: exploitation none, automatable no, technical impact partial (assessed 2026-09-18)
- Weakness: CWE-862
- 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

An attacker (with a compromised renderer + social engineering) can bypass web-origin policy to access/exfiltrate data, hijack sessions, or perform unauthorized actions.

## Action

Patch when possible

## Recommendation

Update Chrome to 153.0.8010.47 or later immediately

## References

- [other] https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html
- [other] https://issues.chromium.org/issues/511062248

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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.