CVE-2026-17870
Low
No strong exploitation signal.
CVSS base
4.3
MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS — probability of exploitation (30 days)
0.1%
1.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-20
Published 2026-07-30 · modified 2026-08-03
CVSS breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
| Attack Vector | A | Adjacent |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | N | None |
| Availability | N | None |
Timeline
- 2026-07-30 — Published (NVD)
- 2026-08-03 — Last modified (NVD)
Description
Insufficient validation of untrusted input in Cast in Google Chrome prior to 151.0.7922.72 allowed an attacker on the local network segment to leak cross-origin data via malicious network traffic. (Chromium security severity: Medium)