CVE-2021-21303

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.07% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 64.7% of scored records. A rank, not a probability.

NVD base score

6.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-02-05 21:40Z5 YR AGO

Last updated

2024-08-03 18:09Z2 YR AGO

Reserved

2020-12-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.9)

CNA CVSS vector

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

Weaknesses

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class

Data version

5.1

Document digest

e71c787ad73f598213bf892873162641014a574f439a50369b440c8e7f06b9ee

• github.comhttps://github.com/helm/helm/security/advisories/GHSA-c38g-469g-cmgxx_refsource_CONFIRM
• github.comhttps://github.com/helm/helm/commit/6ce9ba60b73013857e2e7c73d3f86ed70bc1ac9ax_refsource_MISC
• github.comhttps://github.com/helm/helm/releases/tag/v3.5.2x_refsource_MISC