CVE-2026-78949
Low
No strong exploitation signal.
CVSS base
2.9
LOW
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS — probability of exploitation (30 days)
0.1%
0.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-203
Published 2026-08-25 · modified 2026-08-31
CVSS breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
| Attack Vector | L | Local |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | N | None |
| Availability | N | None |
Timeline
- 2026-08-25 — Published (NVD)
- 2026-08-31 — Last modified (NVD)
Description
Observable discrepancy in CustomTabs in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker to obtain cross-origin data via a co-installed app. (Chromium security severity: Medium)