Security readout for executives and security teams
Plain-English summary
Helm versions before 3.6.1 could send private repository usernames and passwords to another domain listed by that repository. This is mainly a credential-exposure issue, not code execution. Business urgency depends on whether authenticated Helm repositories were used and whether their chart indexes referenced other domains.
Executive priority
Treat this as a targeted credential-exposure cleanup. Prioritize environments using authenticated Helm repositories in CI/CD or production deployment workflows, especially where leaked credentials could access private charts or deployment artifacts.
Technical view
CVE-2021-32690 affects Helm before 3.6.1. Credentials tied to a Helm repository could be forwarded to another domain referenced in chart version urls in index.yaml. CVSS is 6.8 with high confidentiality impact and high attack complexity. The issue is fixed in Helm 3.6.1.
Likely exposure
Organizations are exposed if they used Helm before 3.6.1 with username/password-authenticated repositories, and those repository index.yaml files referenced another domain for chart version urls that users pulled or installed.
Exploitation context
The provided sources do not state active exploitation, and this CVE is not marked KEV. Practical impact requires a credentialed Helm repository plus an alternate domain reference in the repository index. Evidence is incomplete for real-world exploitation frequency.
Researcher notes
Validation should focus on repository configuration and historical chart usage, not generic Kubernetes exposure. The key condition is whether authenticated repository credentials were sent to chart urls hosted on a different domain before Helm 3.6.1.
Mitigation direction
- Upgrade Helm clients to version 3.6.1 or later.
- Audit authenticated Helm repositories for alternate domains in index.yaml urls.
- Check vendor advisory and release notes for current guidance.
- If exposure is suspected, follow internal credential-response procedures.
Validation and detection
- Inventory Helm client versions used by developers and automation.
- Identify Helm repositories configured with usernames and passwords.
- Review repository index.yaml chart version urls for other domains.
- Check whether affected chart versions were pulled or installed.
- Document credential scope for any potentially exposed repository accounts.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-32690 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N2.24Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.8MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/helm/helm/security/advisories/GHSA-56hp-xqp3-w2jfCVE reference · x_refsource_CONFIRM
- https://github.com/helm/helm/releases/tag/v3.6.1CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.