What is CVE-2021-33708?

CVE-2021-33708 is a high-severity vulnerability in Kyma-Project Kyma, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2021-08-10.

How severe is CVE-2021-33708?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Kyma-Project Kyma

CVE-2021-33708

Due to insufficient input validation in Kyma, authenticated users can pass a Header of their choice and escalate privileges.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-08-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (56.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Kyma-Project Kyma
SAP Se Kyma — versions <1.24

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/kyma-project/kyma/security/advisories/GHSA-f2jp-5gj4-q9c9 (Third Party Advisory)

Frequently asked questions

What is CVE-2021-33708?: CVE-2021-33708 is a high-severity vulnerability in Kyma-Project Kyma, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2021-08-10.
How severe is CVE-2021-33708?: High severity. CVSS v3 base score is 8.8 out of 10.