CVE-2026-55588
- Source
- https://cve.org/CVERecord?id=CVE-2026-55588
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55588.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-55588
- Aliases
- Downstream
- Published
- 2026-08-25T20:32:18.677Z
- Modified
- 2026-08-28T03:30:53.626632211Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- ORAS CLI: Cyclic Referrer Graph Can Cause Unbounded Recursion and Resource Consumption
- Details
-
ORAS (OCI Registry As Storage) is a CLI and library for managing artifacts in OCI registries. In ORAS CLI versions up to and including 1.3.2, the recursive referrer traversal does not track visited descriptors, so a malicious OCI registry that returns a cyclic referrer graph causes unbounded recursion and memory growth. This affects oras discover, whose recursive traversal is enabled by default because the --depth option defaults to 0 (unlimited), as well as the recursive referrer counting used by the oras backup and oras restore workflows. A cyclic graph can be as simple as A referring to B and B referring back to A. A malicious registry can use this to cause a client-side denial of service, exhausting CPU and memory and hanging automation or CI/CD pipelines that run ORAS against untrusted registry metadata. The vulnerability does not extend to code execution, artifact substitution, or integrity bypass. This issue has been fixed in version 1.3.3.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55588.json", "cwe_ids": [ "CWE-400", "CWE-674", "CWE-835" ], "cna_assigner": "GitHub_M" }- References