{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T06:45:55.848","vulnerabilities":[{"cve":{"id":"CVE-2025-13836","sourceIdentifier":"cna@python.org","published":"2025-12-01T18:16:04.200","lastModified":"2026-02-10T19:58:12.130","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS."},{"lang":"es","value":"Al leer una respuesta HTTP de un servidor, si no se especifica una cantidad de lectura, el comportamiento predeterminado será usar Content-Length. Esto permite a un servidor malicioso hacer que el cliente lea grandes cantidades de datos en la memoria, lo que podría causar OOM u otro DoS."}],"metrics":{"cvssMetricV40":[{"source":"cna@python.org","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-400"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:*:*:*:*:*:*:*:*","versionEndExcluding":"3.13.11","matchCriteriaId":"701E94DB-563E-44FF-AABF-0F49A9FF664A"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.14.0:-:*:*:*:*:*:*","matchCriteriaId":"D9A884CF-F98D-490D-A3B6-74F0DBFC3BD3"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha1:*:*:*:*:*:*","matchCriteriaId":"A3327507-0B1D-4F28-A983-D07A2C8A7696"},{"vulnerable":true,"criteria":"cpe:2.3:a:python:python:3.15.0:alpha2:*:*:*:*:*:*","matchCriteriaId":"C8AF17F1-A27F-4C98-BA5A-B4319710E8D1"}]}]}],"references":[{"url":"https://github.com/python/cpython/commit/14b1fdb0a94b96f86fc7b86671ea9582b8676628","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/289f29b0fe38baf2d7cb5854f4bb573cc34a6a15","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/4ce27904b597c77d74dd93f2c912676021a99155","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/5a4c4a033a4a54481be6870aa1896fad732555b5","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/5dc101675fd22918facbbe0fecdc821502beaaf0","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/commit/afc40bdd3dd71f343fd9016f6d8eebbacbd6587c","source":"cna@python.org","tags":["Patch"]},{"url":"https://github.com/python/cpython/issues/119451","source":"cna@python.org","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/python/cpython/pull/119454","source":"cna@python.org","tags":["Issue Tracking","Patch"]},{"url":"https://mail.python.org/archives/list/security-announce@python.org/thread/OQ6G7MKRQIS3OAREC3HNG3D2DPOU34XO/","source":"cna@python.org","tags":["Vendor Advisory"]}]}}]}