{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-6069", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "state": "PUBLISHED", "assignerShortName": "PSF", "dateReserved": "2025-06-13T14:05:15.473Z", "datePublished": "2025-06-17T13:39:46.058Z", "dateUpdated": "2026-07-31T14:01:47.064Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "modules": [ "html.parser" ], "product": "CPython", "repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "versions": [ { "version": "0", "lessThan": "3.9.24", "status": "affected", "versionType": "python" }, { "version": "3.10.0", "lessThan": "3.10.19", "status": "affected", "versionType": "python" }, { "version": "3.11.0", "lessThan": "3.11.14", "status": "affected", "versionType": "python" }, { "version": "3.12.0", "lessThan": "3.12.12", "status": "affected", "versionType": "python" }, { "version": "3.13.0", "lessThan": "3.13.6", "status": "affected", "versionType": "python" }, { "version": "3.14.0a1", "lessThan": "3.14.0b3", "status": "affected", "versionType": "python" } ] } ], "credits": [ { "lang": "en", "type": "remediation developer", "value": "Serhiy Storchaka" }, { "lang": "en", "type": "reporter", "value": "Jake Howard" }, { "lang": "en", "type": "finder", "value": "sw0rd1ight" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service." } ], "value": "The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-1333", "description": "CWE-1333 Inefficient Regular Expression Complexity", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2026-07-31T14:01:47.064Z" }, "references": [ { "tags": [ "issue-tracking" ], "url": "https://github.com/python/cpython/issues/135462" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/pull/135464" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/4455cbabf991e202185a25a631af206f60bbc949" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/6eb6c5dbfb528bd07d77b60fd71fd05d81d45c41" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/d851f8e258c7328814943e923a7df81bca15df4b" }, { "tags": [ "vendor-advisory" ], "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/K5PIYLR6EP3WR7ZOKKYQUWEDNQVUXOYM/" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/8d1b3dfa09135affbbf27fb8babcf3c11415df49" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/ab0893fd5c579d9cea30841680e6d35fc478afb5" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/f3c6f882cddc8dc30320d2e73edf019e201394fc" }, { "tags": [ "patch" ], "url": "https://github.com/python/cpython/commit/fdc9d214c01cb4588f540cfa03726bbf2a33fc15" } ], "source": { "discovery": "UNKNOWN" }, "title": "HTMLParser quadratic complexity when processing malformed inputs", "x_generator": { "engine": "Vulnogram 0.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-06-17T13:58:28.646020Z", "id": "CVE-2025-6069", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-17T13:58:41.637Z" } } ] } }