CVE-2016-10583
closure-util downloads Resources over HTTP
closure-utils is Utilities for Closure Library based projects. closure-utils downloads binary resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested binary with an attacker controlled binary if the attacker is on the network or positioned in between the user and the remote server.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
closure-utils is Utilities for Closure Library based projects. closure-utils downloads binary resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested binary with an attacker controlled binary if the attacker is on the network or positioned in between the user and the remote server.
- Record
CVE-2016-10583- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
closure-utils is Utilities for Closure Library based projects. closure-utils downloads binary resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested binary with an attacker controlled binary if the attacker is on the network or positioned in between the user and the remote server.
- Record
CVE-2016-10583- Updated
- 2026-11-02
EUVDEUVD-2019-0200 No score
closure-utils is Utilities for Closure Library based projects. closure-utils downloads binary resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested binary with an attacker controlled binary if the attacker is on the network or positioned in between the user and the remote server.
- Record
EUVD-2019-0200- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2hpj-g53m-9gj6
closure-util downloads Resources over HTTP
Affected versions of closure-util insecurely download an executable over an unencrypted HTTP connection.
In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the system running closure-util.
Recommendation
To mitigate this issue:
- Install the package using npm's
--ignore-scriptsflag. - Navigate to the package directory, and open
default-config.jsonin a text editor - Change the download URLs in the
compiler_urlandlibrary_urltohttpsequivalents - run
npm iin the package directory.
- Record
GHSA-2hpj-g53m-9gj6- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-311
- Updated
- 2026-11-02
OSVGHSA-2hpj-g53m-9gj6
closure-util downloads Resources over HTTP
Affected versions of closure-util insecurely download an executable over an unencrypted HTTP connection.
In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the system running closure-util.
Recommendation
To mitigate this issue:
- Install the package using npm's
--ignore-scriptsflag. - Navigate to the package directory, and open
default-config.jsonin a text editor - Change the download URLs in the
compiler_urlandlibrary_urltohttpsequivalents - run
npm iin the package directory.
- Record
GHSA-2hpj-g53m-9gj6- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-311
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
closure-utilnpm |
through 2.0.0-beta.1 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-10583 is a high vulnerability (CVSS 8.1) in Openlayers Closure-util, published June 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.51%, the 84th percentile. No source names a fixed version.