CVE-2021-33708
Due to insufficient input validation in Kyma, authenticated users can pass a Header of their choice and escalate privileges.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Due to insufficient input validation in Kyma, authenticated users can pass a Header of their choice and escalate privileges.
- Record
CVE-2021-33708- CVSS 3.0
- 7.6 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L - Updated
- 2026-11-02
EUVDEUVD-2021-20385
Due to insufficient input validation in Kyma, authenticated users can pass a Header of their choice and escalate privileges.
- Record
EUVD-2021-20385- CVSS 3.0
- 7.6 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L - Updated
- 2026-11-03
NVD
Due to insufficient input validation in Kyma, authenticated users can pass a Header of their choice and escalate privileges.
- Record
CVE-2021-33708- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 7.6 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
Due to insufficient input validation in Kyma, authenticated users can pass a Header of their choice and escalate privileges.
- Record
CVE-2021-33708- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-33708 is a high vulnerability (CVSS 7.6) in Kyma-project Kyma, published August 10, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. No source names a fixed version.