{"items":[{"id":"NVI-00009160","kind":"vulnerability","title":"pyasn1 has quadratic CPU consumption in constructed BIT STRING decoding","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-2qm8-x737-gmw5","CVE-2026-119196"],"plain_summary":"GitHub lists this reviewed advisory for pyasn1. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0be5d8491914d123e0267d81040697b6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-30T23:07:05.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-d73534f08e0faac5d1e3b775aa62a548"},{"kind":"CVSS","as_of":"2026-11-04T02:17:18.177Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-24a54389e5ff364236300a4736700124"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.425%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.36946. Missing scores are unknown.","source_id":"sr-0be5d8491914d123e0267d81040697b6"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d73534f08e0faac5d1e3b775aa62a548","url":"https://github.com/advisories/GHSA-2qm8-x737-gmw5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2qm8-x737-gmw5","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"},{"id":"sr-24a54389e5ff364236300a4736700124","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119196","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-119196","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-07T07:02:19.731Z"},{"id":"sr-0be5d8491914d123e0267d81040697b6","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-119196","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.317Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d73534f08e0faac5d1e3b775aa62a548"],"technology":"pyasn1","known_exclusions":[],"conditions_summary":"## Summary\n\nIn pyasn1 through 0.6.4, decoding a constructed BIT STRING with many fragments repeatedly shifts and copies the entire value accumulated so far. For fixed-size fragments, CPU time grows quadratically with the encoded input size. An application that passes sufficiently large, attacker-controlled ASN.1 data to an affected decoder can suffer CPU exhaustion during `decode()`; no conversion or formatting of the decoded value is required.\n\nThe BER and CER decoders reach this path for constructed BIT STRING values, with or without an `asn1Spec`. The DER decoder rejects constructed BIT STRING in schema-less decoding, but its schema-driven path accepts a **definite-length** constructed BIT STRING when given a matching `asn1Spec` and reaches the same vulnerable code. Constructed BIT STRING is not valid DER; this DER exposure is due to decoder permissiveness. DER rejects the indefinite-length form.\n\nThis is a separate decoder path from the OBJECT IDENTIFIER accumulation fixed in CVE-2026-59885.\n\n## Technical details\n\nIn the 0.6.4 [`BitStringPayloadDecoder`](https://github.com/pyasn1/pyasn1/blob/v0.6.4/pyasn1/codec/ber/decoder.py","public_affected_ranges":["<= 0.6.4"]}],"null_published_at":"2026-11-07T18:43:12.076Z","source_updated_at":"2026-10-30T23:07:05.000Z","source_disclosed_at":"2026-10-30T23:07:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009160","kind":"vulnerability","title":"pyasn1 has quadratic CPU consumption in constructed BIT STRING decoding","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2qm8-x737-gmw5","CVE-2026-119196"],"plain_summary":"GitHub lists this reviewed advisory for pyasn1. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0be5d8491914d123e0267d81040697b6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-30T23:07:05.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-d73534f08e0faac5d1e3b775aa62a548"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.425%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.36946. Missing scores are unknown.","source_id":"sr-0be5d8491914d123e0267d81040697b6"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d73534f08e0faac5d1e3b775aa62a548","url":"https://github.com/advisories/GHSA-2qm8-x737-gmw5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2qm8-x737-gmw5","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"},{"id":"sr-0be5d8491914d123e0267d81040697b6","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-119196","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.317Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d73534f08e0faac5d1e3b775aa62a548"],"technology":"pyasn1","known_exclusions":[],"conditions_summary":"## Summary\n\nIn pyasn1 through 0.6.4, decoding a constructed BIT STRING with many fragments repeatedly shifts and copies the entire value accumulated so far. For fixed-size fragments, CPU time grows quadratically with the encoded input size. An application that passes sufficiently large, attacker-controlled ASN.1 data to an affected decoder can suffer CPU exhaustion during `decode()`; no conversion or formatting of the decoded value is required.\n\nThe BER and CER decoders reach this path for constructed BIT STRING values, with or without an `asn1Spec`. The DER decoder rejects constructed BIT STRING in schema-less decoding, but its schema-driven path accepts a **definite-length** constructed BIT STRING when given a matching `asn1Spec` and reaches the same vulnerable code. Constructed BIT STRING is not valid DER; this DER exposure is due to decoder permissiveness. DER rejects the indefinite-length form.\n\nThis is a separate decoder path from the OBJECT IDENTIFIER accumulation fixed in CVE-2026-59885.\n\n## Technical details\n\nIn the 0.6.4 [`BitStringPayloadDecoder`](https://github.com/pyasn1/pyasn1/blob/v0.6.4/pyasn1/codec/ber/decoder.py","public_affected_ranges":["<= 0.6.4"]}],"null_published_at":"2026-11-07T14:01:58.752Z","source_updated_at":"2026-10-30T23:07:05.000Z","source_disclosed_at":"2026-10-30T23:07:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009160","kind":"vulnerability","title":"pyasn1 has quadratic CPU consumption in constructed BIT STRING decoding","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2qm8-x737-gmw5","CVE-2026-119196"],"plain_summary":"GitHub lists this reviewed advisory for pyasn1. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0f456cbd08438f3bab6704bbc5ab4e79"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-30T23:07:05.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-d73534f08e0faac5d1e3b775aa62a548"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.425%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.36842. Missing scores are unknown.","source_id":"sr-0f456cbd08438f3bab6704bbc5ab4e79"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d73534f08e0faac5d1e3b775aa62a548","url":"https://github.com/advisories/GHSA-2qm8-x737-gmw5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2qm8-x737-gmw5","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"},{"id":"sr-0f456cbd08438f3bab6704bbc5ab4e79","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-119196","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.779Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d73534f08e0faac5d1e3b775aa62a548"],"technology":"pyasn1","known_exclusions":[],"conditions_summary":"## Summary\n\nIn pyasn1 through 0.6.4, decoding a constructed BIT STRING with many fragments repeatedly shifts and copies the entire value accumulated so far. For fixed-size fragments, CPU time grows quadratically with the encoded input size. An application that passes sufficiently large, attacker-controlled ASN.1 data to an affected decoder can suffer CPU exhaustion during `decode()`; no conversion or formatting of the decoded value is required.\n\nThe BER and CER decoders reach this path for constructed BIT STRING values, with or without an `asn1Spec`. The DER decoder rejects constructed BIT STRING in schema-less decoding, but its schema-driven path accepts a **definite-length** constructed BIT STRING when given a matching `asn1Spec` and reaches the same vulnerable code. Constructed BIT STRING is not valid DER; this DER exposure is due to decoder permissiveness. DER rejects the indefinite-length form.\n\nThis is a separate decoder path from the OBJECT IDENTIFIER accumulation fixed in CVE-2026-59885.\n\n## Technical details\n\nIn the 0.6.4 [`BitStringPayloadDecoder`](https://github.com/pyasn1/pyasn1/blob/v0.6.4/pyasn1/codec/ber/decoder.py","public_affected_ranges":["<= 0.6.4"]}],"null_published_at":"2026-11-06T00:29:57.276Z","source_updated_at":"2026-10-30T23:07:05.000Z","source_disclosed_at":"2026-10-30T23:07:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009160","kind":"vulnerability","title":"pyasn1 has quadratic CPU consumption in constructed BIT STRING decoding","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2qm8-x737-gmw5","CVE-2026-119196"],"plain_summary":"GitHub lists this reviewed advisory for pyasn1. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-d73534f08e0faac5d1e3b775aa62a548"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-30T23:07:05.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-d73534f08e0faac5d1e3b775aa62a548"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d73534f08e0faac5d1e3b775aa62a548","url":"https://github.com/advisories/GHSA-2qm8-x737-gmw5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2qm8-x737-gmw5","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d73534f08e0faac5d1e3b775aa62a548"],"technology":"pyasn1","known_exclusions":[],"conditions_summary":"## Summary\n\nIn pyasn1 through 0.6.4, decoding a constructed BIT STRING with many fragments repeatedly shifts and copies the entire value accumulated so far. For fixed-size fragments, CPU time grows quadratically with the encoded input size. An application that passes sufficiently large, attacker-controlled ASN.1 data to an affected decoder can suffer CPU exhaustion during `decode()`; no conversion or formatting of the decoded value is required.\n\nThe BER and CER decoders reach this path for constructed BIT STRING values, with or without an `asn1Spec`. The DER decoder rejects constructed BIT STRING in schema-less decoding, but its schema-driven path accepts a **definite-length** constructed BIT STRING when given a matching `asn1Spec` and reaches the same vulnerable code. Constructed BIT STRING is not valid DER; this DER exposure is due to decoder permissiveness. DER rejects the indefinite-length form.\n\nThis is a separate decoder path from the OBJECT IDENTIFIER accumulation fixed in CVE-2026-59885.\n\n## Technical details\n\nIn the 0.6.4 [`BitStringPayloadDecoder`](https://github.com/pyasn1/pyasn1/blob/v0.6.4/pyasn1/codec/ber/decoder.py","public_affected_ranges":["<= 0.6.4"]}],"null_published_at":"2026-10-31T22:13:31.288Z","source_updated_at":"2026-10-30T23:07:05.000Z","source_disclosed_at":"2026-10-30T23:07:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:55:49.621Z"}],"next_cursor":null,"snapshot_revision":"42594"}