CVE-2019-5856
Insufficient policy enforcement in storage in Google Chrome prior to 76.0.3809.87 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page.
02 Description
Insufficient policy enforcement in storage in Google Chrome prior to 76.0.3809.87 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.79% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 56.0% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-11-25 14:22Z6 YR AGO
- Last updated
- 2024-08-04 20:09Z2 YR AGO
- Reserved
- 2019-01-09
- Assigning CNA
- Chrome
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- 80f07906df0dfc9636d344b9f684b800396beebb123c4e953bdcff32f77cc0cb
05 Affected products
06 References
- chromereleases.googleblog.comhttps://chromereleases.googleblog.com/2019/07/stable-channel-update-for-desktop_30.html
- crbug.comhttps://crbug.com/964245
07 Fixed in
Arch Linux
- chromium Fixed in 76.0.3809.87-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- chromium Fixed in 76.0.3809.87-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- chromium Fixed in 76.0.3809.87-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- chromium Fixed in 76.0.3809.87-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- chromium-browser Fixed in 76.0.3809.87-0ubuntu0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- chromium-browser Fixed in 76.0.3809.87-0ubuntu0.18.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.