{"action":"Upgrade remarshal to 0.17.1 or later.","affected":[{"fixed":"0.17.1","introduced":"0"}],"component":"remarshal","cve_ids":["CVE-2023-47163"],"ecosystem":"PyPI","epss":0.0097,"exploited":false,"fixed_versions":["0.17.1"],"ghsa_id":"GHSA-gw7g-qr8w-3448","id":"tcs_01M5KGK1NH9BZ636CD8Y2MR03F","modified_at":"2026-06-10T17:02:36.562197631Z","published_at":"2023-11-13T03:15:00Z","references":["https://osv.dev/vulnerability/PYSEC-2023-236","https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1","https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494","https://jvn.jp/en/jp/JVN86156389/","https://github.com/advisories/GHSA-gw7g-qr8w-3448"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2023-236","url":"https://osv.dev/vulnerability/PYSEC-2023-236"}],"summary":"Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition."}