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High, CVSS 7.5

Helm uses crypto package vulnerable to panic from malformed X.509 certificate

CVE-2020-7919GHSA-cjjc-xp8v-855w

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (helm.sh/helm/v3 3.1.0; golang.org/x/crypto 0.0.0-20200124225646-8b5121be2f68; github.com/helm/helm 2.16.8), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
  • CVE-2020-7919: 2.65% estimated exploitation activity in the next 30 days; percentile 85.63 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

The Helm core maintainers have identified a high severity security vulnerability in Go's crypto package affecting all versions prior to Helm 2.16.8 and Helm 3.1.0. Thanks to @ravin9249 for identifying the vulnerability. Impact Go before 1.12.16 and 1.13.x before 1.13.7 (and the crypto/cryptobyte package before 0.0.0-20200124225646-8b5121be2f68 for Go) allows attacks on clients resulting in a panic via a malformed X.509 certificate. This may allow a remote attacker to cause a denial of service. Patches A patch to compile Helm against Go 1.14.4 has been provided for Helm 2 and is available in Helm 2.16.8. Helm 3.1.0 and newer are compiled against Go 1.13.7+. Workarounds No workaround is available. Users are urged to upgrade. References - https://nvd.nist.gov/vuln/detail/CVE-2020-7919 - https://github.com/helm/helm/pull/8288 For more information If you have any questions or comments about this advisory: Open an issue in the Helm repository For security-specific issues, email us at…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-cjjc-xp8v-855w

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2020-7919

Advisory: Helm uses crypto package vulnerable to panic from malformed X.509 certificate
IDs: CVE-2020-7919, GHSA-cjjc-xp8v-855w
Record: https://patchnext.com/advisories/cve-2020-7919 (revision 1, source checked 26 Oct 2026, 15:04 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: helm.sh/helm/v3 3.1.0; golang.org/x/crypto 0.0.0-20200124225646-8b5121be2f68; github.com/helm/helm 2.16.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go helm.sh/helm/v3: affected >= 3.0.0, < 3.1.0; fixed in 3.1.0
- Go golang.org/x/crypto: affected < 0.0.0-20200124225646-8b5121be2f68; fixed in 0.0.0-20200124225646-8b5121be2f68
- Go github.com/helm/helm: affected >= 2.0.0, < 2.16.8; fixed in 2.16.8

## Suggested inspection (read-only)
- Go helm.sh/helm/v3: check the installed version with your package manager.
- Go golang.org/x/crypto: check the installed version with your package manager.
- Go github.com/helm/helm: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on helm.sh/helm/v3, golang.org/x/crypto, github.com/helm/helm.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-cjjc-xp8v-855w (GitHub-reviewed advisory GHSA-cjjc-xp8v-855w lists affected ranges: Go github.com/helm/helm >=2.0.0 =0 =3.0.0 <3.1.0)

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