Vulnerability · Published Aug 25, 2026 · Assigned by Chrome
CVE-2026-78949
Low 2.9
In plain English
A low-severity security flaw in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)2.9Low
Exploit odds (30 days)0.1%top 98.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 152.0.7977.75-1~deb12u1 | DEBIAN-CVE-2026-78949 |
| Debian:13 | chromium | 152.0.7977.75-1~deb13u1 | DEBIAN-CVE-2026-78949 |
| Debian:14 | chromium | 152.0.7977.64-1 | DEBIAN-CVE-2026-78949 |
Affected products (as reported)
Weakness: CWE-203 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N