CVE-2026-17977: Google Chrome · Policy Bypass
Affects Google ChromeSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium : upgrade to 151.0.7922.72 when convenient.
Data as of 28 Oct 2026, 05:11 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 151.0.7922.72
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Google Chrome to 151.0.7922.72.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GoogleChrome | Affected
| Fixed in
|
AI-suggested
The vendor advisory linked suggests a stable channel update for Chrome but does not explicitly confirm the availability of a patch or remediation level. Since the affected version is prior to 151.0.7922.72, updating to version 151.0.7922.72 or later is recommended to address this vulnerability. Patch status is not explicitly confirmed; users should consult the vendor advisory for the latest remediation guidance.
Description
CVE-2026-17977 is a policy bypass vulnerability in the CSS implementation of Google Chrome versions prior to 151.0.7922.72. This flaw allows a remote attacker to leak cross-origin data by crafting a malicious HTML page. The vulnerability has a CVSS score of 4.3, indicating medium severity, and does not impact integrity or availability. No known exploits are reported in the wild. A vendor advisory is available but does not explicitly confirm patch status.