PatchTheCVECVE-2026-121199: Missing authorization in Chromoting in Google Chrome on on Mac prior to 157.0.8103.38 allowed a local attacker
CVE-2026-121199 is a medium-severity flaw (CVSS 5.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Missing authorization in Chromoting in Google Chrome on on Mac prior to 157.0.8103.38 allowed a local attacker to obtain sensitive information via a local program. (Chromium security severity: Medium)
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.1% (top 99%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2026-11-03 |
| Last modified | 2026-11-04 |
Last updated 2026-11-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Research and news
- VulDB Recent Entries: CVE-2026-121199 | Google Chrome up to 156.0.8078.79 Chromoting improper authorization 2026-11-03
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-121199?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-121199 being exploited?
CVE-2026-121199 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-121199 affect?
CVE-2026-121199 affects affected software. Severity is medium (CVSS 5.5). Missing authorization in Chromoting in Google Chrome on on Mac prior to 157.0.8103.38 allowed a local attacker to obtain sensitive information via a local program. (Chromium security severity: Medium)
How urgent is CVE-2026-121199?
Priority 19/100. No elevated risk signals yet.
Software pages
Google Chrome vulnerabilities · Chromium vulnerabilities