{"action":"Upgrade pyasn1 to 0.6.4 or later.","affected":[{"fixed":"0.6.4","introduced":"0"}],"component":"pyasn1","cve_ids":["CVE-2026-59885"],"ecosystem":"PyPI","epss":0.00616,"exploited":false,"fixed_versions":["0.6.4"],"ghsa_id":"GHSA-8ppf-4f7h-5ppj","id":"tcs_01M5KH5E5DMJQF63ANW75PE60A","modified_at":"2026-07-22T11:00:08.814095424Z","published_at":"2026-07-14T17:17:14.880Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3456","https://github.com/pyasn1/pyasn1/releases/tag/v0.6.4","https://github.com/pyasn1/pyasn1/security/advisories/GHSA-8ppf-4f7h-5ppj","https://github.com/pyasn1/pyasn1/commit/45bdb19eb7df4b3780fe9c912c63e99bffc39dd9"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-3456","url":"https://osv.dev/vulnerability/PYSEC-2026-3456"}],"summary":"pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a sm"}