CVE-2022-41939

Name: CVE-2022-41939
Creator: NVD / NIST
Published: 2022-11-19T01:15:13.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.89%

Last modified Jun 17, 2026

CVE-2022-41939 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. knative.dev/func is is a client library and CLI enabling the development and deployment of Kubernetes functions. Developers using a malicious or compromised third-party buildpack could expose their registry credentials or local docker socket to a malicious `lifecycle` container. EPSS estimates a 0.89% chance of exploitation in the next 30 days.

Description

knative.dev/func is is a client library and CLI enabling the development and deployment of Kubernetes functions. Developers using a malicious or compromised third-party buildpack could expose their registry credentials or local docker socket to a malicious `lifecycle` container. This issues has been patched in PR #1442, and is part of release 1.8.1. This issue only affects users who are using function buildpacks from third-parties; pinning the builder image to a specific content-hash with a valid `lifecycle` image will also mitigate the attack.

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

EPSS Probability

0.89%

54.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Linuxfoundation	Knative Func	< 1.8.1

References

https://github.com/knative/func/blob/5ca77d38744d3481cc0b795f607c5859b19588fc/buildpacks/builder.go#L37-L41Third Party Advisory
https://github.com/knative/func/pull/1442Patch, Third Party Advisory
https://github.com/knative/func/releases/tag/knative-v1.8.1Release Notes, Third Party Advisory
https://github.com/knative/func/security/advisories/GHSA-5336-2g3f-9g3mExploit, Patch, Third Party Advisory
https://github.com/knative/func/blob/5ca77d38744d3481cc0b795f607c5859b19588fc/buildpacks/builder.go#L37-L41Third Party Advisory
https://github.com/knative/func/pull/1442Patch, Third Party Advisory
https://github.com/knative/func/releases/tag/knative-v1.8.1Release Notes, Third Party Advisory
https://github.com/knative/func/security/advisories/GHSA-5336-2g3f-9g3mExploit, Patch, Third Party Advisory

Timeline

Published: Nov 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-41939?

How severe is CVE-2022-41939?

CVE-2022-41939 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.

How do I fix CVE-2022-41939?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-41939?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST