DEBIAN-CVE-2026-55588
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.
DEBIAN-CVE-2026-55588
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-55588
oras
Source reference: /affected/0/package/name
- Affected versions
- 1.2.0-1
Source reference:
/affected/0/versions1.2.3-1Source reference:
/affected/0/versions1.3.0-1Source reference:
/affected/0/versions1.3.3-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
oras
Source reference: /affected/1/package/name
- Affected versions
- 1.2.0-1
Source reference:
/affected/1/versions1.2.3-1Source reference:
/affected/1/versions1.3.0-1Source reference:
/affected/1/versions - Fixed versions
- 1.3.3-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oras",
"purl": "pkg:deb/debian/oras?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.2.0-1",
"1.2.3-1",
"1.3.0-1",
"1.3.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55588.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.3-1"
}
]
}
],
"package": {
"name": "oras",
"purl": "pkg:deb/debian/oras?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.2.0-1",
"1.2.3-1",
"1.3.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55588.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57383 · Revision 1
- Added to Heist Feed
- Publisher date