{
  "cveId": "CVE-2026-55588",
  "url": "https://patchblox.com/security/cve/CVE-2026-55588",
  "summary": "CVE-2026-55588 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-55588, released August 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "oras: ORAS (OCI Registry As Storage) is a CLI and library for managing artifacts in OCI registries",
  "description": "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.",
  "published": "2026-08-25T21:17:02Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
  "epss": 0.00538,
  "epssPercentile": 0.45525,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.0.20260902T191204-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21812-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21812-1",
      "released": "2026-09-08T16:52:09Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "sles 16.0",
      "fixedVersion": "0.0.20260902T191204-160000.1.1",
      "fix": "SUSE-SU-2026:23712-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23712-1",
      "released": "2026-09-08T16:28:52Z"
    },
    {
      "platform": "linux",
      "product": "oras",
      "release": "Debian 14",
      "fixedVersion": "1.3.3-1",
      "fix": "DEBIAN-CVE-2026-55588",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-55588",
      "released": "2026-08-27T00:27:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}