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Advisory record · GHSA-298f-872v-2rcx

ORAS CLI: Cyclic Referrer Graph Can Cause Unbounded Recursion and Resource Consumption

CVSS 6.5 MediumEPSS 0.0054 · 45th percentile

Published by the GitHub Advisory Database at 28 Aug 2026, 18:19 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
oras.land/orasGo<1.3.31.3.3
Identifiers
GHSA-298f-872v-2rcx · CVE-2026-55588 · GO-2026-6317
Weakness (CWE)
CWE-400 · CWE-674 · CWE-835
Tags
Published
28 Aug 2026
Updated
2 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-298f-872v-2rcx: The ORAS CLI (oras.land/oras) before 1.3.3 can be made to recurse without limit when a registry returns a cyclic referrer graph, because recursive referrer traversal does not track visited descriptors. An attacker running a malicious OCI registry can trigger this against users of oras discover, backup, or restore, causing high CPU and memory use and a hang or failure. Upgrade to oras.land/oras 1.3.3 or later; no workaround is listed.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0054, the 45th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:47 UTC First seen by agentprime
  2. 31 Oct 2026, 14:47 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.