{"history":[{"alert":0,"cve":"CVE-2026-119195","id":23171,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.00527, \"percentile\": 0.45124}"},{"alert":0,"cve":"CVE-2026-119195","id":20736,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.00527, \"percentile\": 0.44957}"},{"alert":0,"cve":"CVE-2026-119195","id":18563,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.00527, \"percentile\": 0.44901}"},{"alert":0,"cve":"CVE-2026-119195","id":16631,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.00527, \"percentile\": 0.44884}"},{"alert":0,"cve":"CVE-2026-119195","id":14609,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.00527, \"percentile\": 0.44861}"},{"alert":0,"cve":"CVE-2026-119195","id":12391,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.00527, \"percentile\": 0.44804}"},{"alert":0,"cve":"CVE-2026-119195","id":10378,"kind":"epss","observed_at":1793938800,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.00527, \"percentile\": 0.44774}"},{"alert":0,"cve":"CVE-2026-119195","id":7928,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.00527, \"percentile\": 0.4475}"},{"alert":0,"cve":"CVE-2026-119195","id":5707,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.00527, \"percentile\": 0.44675}"},{"alert":0,"cve":"CVE-2026-119195","id":3796,"kind":"epss","observed_at":1793679601,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.00527, \"percentile\": 0.44626}"},{"alert":1,"cve":"CVE-2026-119195","id":3673,"kind":"cna","observed_at":1793679601,"payload":"{\"containers\": {\"adp\": [{\"metrics\": [{\"other\": {\"content\": {\"id\": \"CVE-2026-119195\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2026-10-29T20:25:48.864403Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}], \"providerMetadata\": {\"dateUpdated\": \"2026-10-29T20:26:31.801Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"references\": [{\"tags\": [\"exploit\"], \"url\": \"https://github.com/pyasn1/pyasn1/security/advisories/GHSA-9m75-vc3g-4x39\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"pyasn1\", \"vendor\": \"pyasn1\", \"versions\": [{\"status\": \"affected\", \"version\": \"< 0.6.5\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.5, constructed string and indefinite-length ANY decoding repeatedly concatenates each fragment onto a growing bytes value. Attacker-controlled BER or CER data can use many constructed OCTET STRING or character-string fragments. DER rejects constructed OCTET STRING without a schema, but accepts its definite-length form when asn1Spec selects univ.OctetString; it also accepts constructed character strings such as UTF8String without a schema, even though those encodings are not valid DER. The separate indefinite-length ANY path is reachable in BER and CER when asn1Spec selects univ.Any; DER rejects indefinite lengths. OctetStringPayloadDecoder uses growing header concatenation and AnyPayloadDecoder.indefLenValueDecoder uses growing chunk concatenation, repeatedly copying an increasing prefix and causing quadratic work. A sufficiently fragmented value can occupy decoding workers and cause CPU exhaustion without confidentiality or integrity impact. This issue is fixed in version 0.6.5.\"}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"version\": \"3.1\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-407\", \"description\": \"CWE-407: Inefficient Algorithmic Complexity\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2026-10-29T19:41:37.352Z\", \"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\"}, \"references\": [{\"name\": \"https://github.com/pyasn1/pyasn1/security/advisories/GHSA-9m75-vc3g-4x39\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/pyasn1/pyasn1/security/advisories/GHSA-9m75-vc3g-4x39\"}, {\"name\": \"https://github.com/pyasn1/pyasn1/pull/132\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/pyasn1/pyasn1/pull/132\"}, {\"name\": \"https://github.com/pyasn1/pyasn1/commit/4ce00797c594b59c1fd6b86d9ebc3ba87b7ec9f9\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/pyasn1/pyasn1/commit/4ce00797c594b59c1fd6b86d9ebc3ba87b7ec9f9\"}, {\"name\": \"https://github.com/pyasn1/pyasn1/releases/tag/v0.6.5\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/pyasn1/pyasn1/releases/tag/v0.6.5\"}], \"source\": {\"advisory\": \"GHSA-9m75-vc3g-4x39\", \"discovery\": \"UNKNOWN\"}, \"title\": \"pyasn1: Quadratic-time denial of service in constructed string and indefinite-length ANY decoding\"}}, \"cveMetadata\": {\"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"assignerShortName\": \"GitHub_M\", \"cveId\": \"CVE-2026-119195\", \"datePublished\": \"2026-10-29T19:41:37.352Z\", \"dateReserved\": \"2026-10-29T16:04:48.728Z\", \"dateUpdated\": \"2026-10-29T20:26:31.801Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.2\"}"}],"record":{"affected":[{"product":"pyasn1","vendor":"pyasn1","versions":[{"status":"affected","version":"< 0.6.5"}]}],"cna":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-119195","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-10-29T20:25:48.864403Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-29T20:26:31.801Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://github.com/pyasn1/pyasn1/security/advisories/GHSA-9m75-vc3g-4x39"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"pyasn1","vendor":"pyasn1","versions":[{"status":"affected","version":"< 0.6.5"}]}],"descriptions":[{"lang":"en","value":"pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.5, constructed string and indefinite-length ANY decoding repeatedly concatenates each fragment onto a growing bytes value. Attacker-controlled BER or CER data can use many constructed OCTET STRING or character-string fragments. DER rejects constructed OCTET STRING without a schema, but accepts its definite-length form when asn1Spec selects univ.OctetString; it also accepts constructed character strings such as UTF8String without a schema, even though those encodings are not valid DER. The separate indefinite-length ANY path is reachable in BER and CER when asn1Spec selects univ.Any; DER rejects indefinite lengths. OctetStringPayloadDecoder uses growing header concatenation and AnyPayloadDecoder.indefLenValueDecoder uses growing chunk concatenation, repeatedly copying an increasing prefix and causing quadratic work. A sufficiently fragmented value can occupy decoding workers and cause CPU exhaustion without confidentiality or integrity impact. This issue is fixed in version 0.6.5."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-407","description":"CWE-407: Inefficient Algorithmic Complexity","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-29T19:41:37.352Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/pyasn1/pyasn1/security/advisories/GHSA-9m75-vc3g-4x39","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pyasn1/pyasn1/security/advisories/GHSA-9m75-vc3g-4x39"},{"name":"https://github.com/pyasn1/pyasn1/pull/132","tags":["x_refsource_MISC"],"url":"https://github.com/pyasn1/pyasn1/pull/132"},{"name":"https://github.com/pyasn1/pyasn1/commit/4ce00797c594b59c1fd6b86d9ebc3ba87b7ec9f9","tags":["x_refsource_MISC"],"url":"https://github.com/pyasn1/pyasn1/commit/4ce00797c594b59c1fd6b86d9ebc3ba87b7ec9f9"},{"name":"https://github.com/pyasn1/pyasn1/releases/tag/v0.6.5","tags":["x_refsource_MISC"],"url":"https://github.com/pyasn1/pyasn1/releases/tag/v0.6.5"}],"source":{"advisory":"GHSA-9m75-vc3g-4x39","discovery":"UNKNOWN"},"title":"pyasn1: Quadratic-time denial of service in constructed string and indefinite-length ANY decoding"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-119195","datePublished":"2026-10-29T19:41:37.352Z","dateReserved":"2026-10-29T16:04:48.728Z","dateUpdated":"2026-10-29T20:26:31.801Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"cna_checked":1794522003,"cve":"CVE-2026-119195","description":"pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.5, constructed string and indefinite-length ANY decoding repeatedly concatenates each fragment onto a growing bytes value. Attacker-controlled BER or CER data can use many constructed OCTET STRING or character-string fragments. DER rejects constructed OCTET STRING without a schema, but accepts its definite-length form when asn1Spec selects univ.OctetString; it also accepts constructed character strings such as UTF8String without a schema, even though those encodings are not valid DER. The separate indefinite-length ANY path is reachable in BER and CER when asn1Spec selects univ.Any; DER rejects indefinite lengths. OctetStringPayloadDecoder uses growing header concatenation and AnyPayloadDecoder.indefLenValueDecoder uses growing chunk concatenation, repeatedly copying an increasing prefix and causing quadratic work. A sufficiently fragmented value can occupy decoding workers and cause CPU exhaustion without confidentiality or integrity impact. This issue is fixed in version 0.6.5.","epss":{"date":"2026-11-12","epss":0.00527,"percentile":0.45124},"epss_checked":1794522003,"first_seen":1793669144,"kev":null,"kev_checked":1794522003,"products":"pyasn1 pyasn1","references":["https://github.com/pyasn1/pyasn1/security/advisories/GHSA-9m75-vc3g-4x39","https://github.com/pyasn1/pyasn1/pull/132","https://github.com/pyasn1/pyasn1/commit/4ce00797c594b59c1fd6b86d9ebc3ba87b7ec9f9","https://github.com/pyasn1/pyasn1/releases/tag/v0.6.5"],"score":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","provider":"GitHub_M","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"pyasn1: Quadratic-time denial of service in constructed string and indefinite-length ANY decoding","updated_at":1794500401,"workarounds":""},"sources":[{"canonical_url":"https://github.com/advisories/GHSA-9m75-vc3g-4x39","id":154,"publisher":"GitHub Advisory Database","title":"pyasn1 has quadratic-time denial of service in constructed string and indefinite-length ANY decoding"}]}