CVE-2019-18658
Helm Unsafe Link Following
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
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
What each source reports
NVD Score used
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
- Record
CVE-2019-18658- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-59
- Updated
- 2026-11-02
CVE List No score
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
- Record
CVE-2019-18658- Updated
- 2026-11-02
EUVDEUVD-2022-4688 No score
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
- Record
EUVD-2022-4688- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p5pc-m4q7-7qm9
Helm Unsafe Link Following
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
- Record
GHSA-p5pc-m4q7-7qm9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-59
- Updated
- 2026-11-02
OSV
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
- Record
CVE-2019-18658- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-p5pc-m4q7-7qm9
Helm Unsafe Link Following
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
- Record
GHSA-p5pc-m4q7-7qm9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-59
- Updated
- 2026-11-02
OSVGO-2023-1938 No score
Helm Unsafe Link Following in helm.sh/helm
Helm Unsafe Link Following in helm.sh/helm
- Record
GO-2023-1938- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10842-1 No score
helm-mirror-0.3.1-1.9 on GA media
These are all security issues fixed in the helm-mirror-0.3.1-1.9 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10842-1- Updated
- 2026-11-02
OSVSUSE-SU-2022:1888-1 No score
Security update for helm-mirror
This update for helm-mirror fixes the following issues:
- Updated to version 0.3.1:
- CVE-2019-18658: Fixed a potential symbolic link issue in helm that could be used to leak sensitive files (bsc#1156646).
- Record
SUSE-SU-2022:1888-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
helm.sh/helmGo |
2.0.0 up to 2.15.2 | 2.15.2 |
helm.sh/helmGo |
2.0.0+incompatible up to 2.15.2+incompatible | 2.15.2+incompatible |
helm-mirrorSUSE:Linux Enterprise Module for Containers 15 SP3 |
before 0.3.1-150000.1.13.1 | 0.3.1-150000.1.13.1 |
helm-mirrorSUSE:Linux Enterprise Module for Containers 15 SP4 |
before 0.3.1-150000.1.13.1 | 0.3.1-150000.1.13.1 |
helm-mirroropenSUSE:Leap 15.3 |
before 0.3.1-150000.1.13.1 | 0.3.1-150000.1.13.1 |
helm-mirroropenSUSE:Leap 15.4 |
before 0.3.1-150000.1.13.1 | 0.3.1-150000.1.13.1 |
helm-mirroropenSUSE:Tumbleweed From an advisory covering 4 CVEs |
before 0.3.1-1.9 | 0.3.1-1.9 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| 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-2019-18658 is a critical vulnerability (CVSS 9.8) in Helm, published November 12, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.75%, the 77th percentile. Fixed in helm.sh/helm 2.15.2.