CVE-2026-91727
HIGH 8.1 ALL-YEARSIncorrect reference resolution in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a local attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)
ELEVATED IMPACT
Severe if exploited (CVSS 8.1), but no confirmed exploitation. Patch on a normal cadence.
Exploitation likelihood
0.1%chance of exploitation in 30 days · 1st percentile
○ In CISA KEV○ Public exploit / PoC◆ SSVC: exploitation none, automatable no
Impact if exploited
8.1CVSS 3.1 · HIGH · ADP
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ⚠Access: Requires local access to the host
- ✓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 & exploit code
No public exploit or proof-of-concept code is catalogued for this CVE (no ExploitDB, Nuclei, or CISA-KEV entry). It may still exist — search GitHub or check the references below.
Weakness (CWE)
- CWE-706: Incorrect reference resolution
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Chrome | < 153.0.8010.47 |
All CVSS metrics
- HIGH 8.1 v3.1 · ADP Primary
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - HIGH 8.1 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H