CVE-2018-11756

In PHP Runtime for Apache OpenWhisk, a Docker action inheriting one of the Docker tags openwhisk...

9.8 Critical

In PHP Runtime for Apache OpenWhisk, a Docker action inheriting one of the Docker tags openwhisk/action-php-v7.2:1.0.0 or openwhisk/action-php-v7.1:1.0.1 (or earlier) may allow an attacker to replace the user function inside the container if the user code is vulnerable to code exploitation.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

8.10%Up 5.6 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

Record: CVE-2018-11756
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-11756
Updated: 2026-11-02

EUVDEUVD-2018-3775 No score

Record: EUVD-2018-3775
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mjvp-pgrg-jw5h 9.8

In PHP Runtime for Apache OpenWhisk, a Docker action inheriting one of the Docker tags openwhisk...

Record: GHSA-mjvp-pgrg-jw5h
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSV 9.8

Record: CVE-2018-11756
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-11756 is a critical vulnerability (CVSS 9.8) in Apache Openwhisk, published July 23, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.10%, the 94th percentile. No source names a fixed version.