{"action":"Upgrade resdata to 6.2.9 or later.","affected":[{"fixed":"6.2.9","introduced":"0"}],"component":"resdata","cve_ids":["CVE-2026-55209"],"ecosystem":"PyPI","epss":0.0078,"exploited":false,"fixed_versions":["6.2.9"],"ghsa_id":"GHSA-pr85-w493-9w3x","id":"tcs_01M5KH6SYP4699VMT18Z48BFT7","modified_at":"2026-08-19T12:45:08.693778249Z","published_at":"2026-08-19T11:56:27.903833Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3694","https://github.com/equinor/resdata/security/advisories/GHSA-pr85-w493-9w3x","https://github.com/equinor/resdata","https://github.com/equinor/resdata/releases/tag/6.2.9","https://pypi.org/project/resdata","https://github.com/advisories/GHSA-pr85-w493-9w3x","https://nvd.nist.gov/vuln/detail/CVE-2026-55209"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-3694","url":"https://osv.dev/vulnerability/PYSEC-2026-3694"}],"summary":"resdata has Classic Buffer Overflow, Improper Validation of Array Index, NULL Pointer Dereference and Out-of-bounds Read"}