Path traversal in quay/claircore
Priority MEDIUM 50CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
A directory traversal vulnerability was found in the ClairCore engine of Clair. An attacker can exploit this by supplying a crafted container image which, when scanned by Clair, allows for arbitrary file write on the filesystem, potentially allowing for remote code execution.
Why it matters now
EPSS 0.04815 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/quay/claircore (Go): 0.4.8, 1.1.0, 0.5.5Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | quay/claircore | Affects v0.4.6 and higher, v0.5.3 and higher | Fixedin claircore v0.4.8, v0.5.5. | — | No fix listed | CNA |
| — | github.com/quay/claircore (Go) | before 0.4.8 | 0.4.8 | Patch available | GHSA-mq47-6wwv-v79w |
| — | github.com/quay/claircore (Go) | 1.0.0 to before 1.1.0 | 1.1.0 | Patch available | GHSA-mq47-6wwv-v79w |
| — | github.com/quay/claircore (Go) | 0.5.0 to before 0.5.5 | 0.5.5 | Patch available | GHSA-mq47-6wwv-v79w |
- quay/claircore Vendor— Affected Affects v0.4.6 and higher, v0.5.3 and higher | Fixedin claircore v0.4.8, v0.5.5. Fixed in — No fix listed CNA
- github.com/quay/claircore (Go) Vendor— Affected before 0.4.8 Fixed in 0.4.8 Patch available GHSA-mq47-6wwv-v79w
- github.com/quay/claircore (Go) Vendor— Affected 1.0.0 to before 1.1.0 Fixed in 1.1.0 Patch available GHSA-mq47-6wwv-v79w
- github.com/quay/claircore (Go) Vendor— Affected 0.5.0 to before 0.5.5 Fixed in 0.5.5 Patch available GHSA-mq47-6wwv-v79w
Remediation
- Fix · GHSA-mq47-6wwv-v79w github.com/quay/claircore (Go) Fixed in 0.4.8 Advisory →
- Fix · GHSA-mq47-6wwv-v79w github.com/quay/claircore (Go) Fixed in 1.1.0 Advisory →
- Fix · GHSA-mq47-6wwv-v79w github.com/quay/claircore (Go) Fixed in 0.5.5 Advisory →
Red Hat 1 advisory
- RHSA-2021:3665 Released 2021-09-28 · Red Hat rating ImportantRed Hat Quay v3.5.7 bug fix and security update
- Quay v3 quay/clair-rhel8
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Quay v3 | Fixed | RHSA-2021:3665 |
Not affected: 1 product
- Quay v3
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3762
- 2026-10-03 Alias added: GHSA-mq47-6wwv-v79w
References
Exploit 1
Patch 5
Other 7
- https://github.com/quay/claircore/commit/dff671c665141f126c072de8a744855d4916c9c7
- https://github.com/quay/claircore/commit/ed5f52aec1c82746725e9cc23e98316eab8be25a
- https://github.com/quay/claircore
- https://github.com/quay/claircore/commits/v0.4.8
- https://github.com/quay/claircore/commits/v0.5.5
- https://github.com/quay/claircore/commits/v1.1.0
- https://pkg.go.dev/vuln/GO-2022-0346
Sources
- CVE-2021-3762 · CVE Program
- CVE-2021-3762 · NVD
- FIRST EPSS
- GHSA-mq47-6wwv-v79w · GitHub Advisory Database · CC BY 4.0
- CVE-2021-3762 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences