# CVE-2019-13740: Security feature bypass in Chrome

> Remote attackers can spoof domains via crafted HTML pages due to incorrect security UI in sharing features, requiring users to update Chrome.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 10 Dec 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-13740, GHSA-gxvx-5hqv-3p5f, UBUNTU-CVE-2019-13740

## What is CVE-2019-13740?

CVE-2019-13740 is a medium-severity vulnerability in Debian Debian Linux, published on 10 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Incorrect security UI in sharing in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to perform domain spoofing via a crafted HTML page.

Weakness: CWE-346 (Origin Validation Error)

## Which versions are affected by CVE-2019-13740?

It affects 7 products.


Products: Debian Debian Linux, Fedoraproject Fedora, Google Chrome, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux for Scientific Computing, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

## How do I fix CVE-2019-13740?

Upgrade to a fixed version.

## Is CVE-2019-13740 being exploited?

There is no known exploitation of CVE-2019-13740 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-13740 and fix it if it is affected.

What it is: CVE-2019-13740 is a medium-severity vulnerability in Debian Debian Linux, published on 10 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-13740 in the wild and no public exploit code.

Affected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-13740/ (Markdown: https://insights.sbomify.com/CVE-2019-13740/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-13740
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-13740
- OSV: https://osv.dev/vulnerability/CVE-2019-13740

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-13740/
Summaries are generated and may contain mistakes; the official description above is the record.