CVE-2021-21306
MediumAdvisory
Published 8 Feb 2021In the index since 8 Sept 2026
- Severity
- Medium
- worst across findings
- CVSS
- 5.3
- base score, highest
- EPSS
- 0.025
- 84th percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 6
- of 17,781 indexed, latest versions
- Container images
- 9
- deployed by those charts
- Fix available
- 1 of 1
- affected package
Regular Expression Denial of Service (REDoS) in Marked
Carried by container images the latest versions of 6 of 17,781 indexed charts deploy, on 9 images.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| markednpm | 1.1.1, 1.2.7, 1.2.9 | 2.0.0 | 9 |
- OSV records
- GHSA-4r62-v4vq-hr96
Charts affected
6 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| ranetogabisonfire | 0.1.2 | 1 of 1See more | 2,519 |
| streamsheetshelm-chartsVerified publisher | 0.2.3 | 4 of 8See more | 89,959 |
| example-dev-toolsnoygal | 0.2.8 | 1 of 3See more | 27,465 |
| ferdi-serverobeoneVerified publisher | 1.0.3 | 1 of 2See more | 1,866 |
| stackrox-chartredhat-cop | 0.0.10 | 1 of 1See more | 29,227 |
| workshop-exercisestakaterVerified publisher | 0.0.260 | 1 of 1See more | 992 |
Container images carrying it
9 by charts deploying them
A fixed version is listed for 1 of the 1 affected package.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| getferdi/ | 6e620b85afaa | marked | 2.0.0 | 1 |
| linuxserver/ | b801bbcf6386 | marked | 2.0.0 | 1 |
| stakater/ | 76926b7159d3 | marked | 2.0.0 | 1 |
| ghcr.io/ | 0635f17c9d2c | marked | 2.0.0 | 1 |
| ghcr.io/ | e34964e336c1 | marked | 2.0.0 | 1 |
| ghcr.io/ | 0c5a3398d1e4 | marked | 2.0.0 | 1 |
| ghcr.io/ | 8ba040e79ca0 | marked | 2.0.0 | 1 |
| ghcr.io/ | ef768f3df5d0 | marked | 2.0.0 | 1 |
| quay.io/ | 6ba82beff18e | marked | 2.0.0 | 1 |