{"schemaVersion":3,"id":"CVE-2026-4359","aliases":["UBUNTU-CVE-2026-4359","DEBIAN-CVE-2026-4359"],"status":"published","duplicateOf":null,"title":null,"description":"A compromised third party cloud server or man-in-the-middle attacker could send a malformed HTTP response and cause a crash in applications using the MongoDB C driver.","dates":{"published":"2026-03-17T19:42:03.476Z","modified":"2026-03-18T20:00:06.747Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":3.7,"severity":"low","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":2,"severity":"low","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":2,"severity":"low","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":2,"severity":"low","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":3.7,"severity":"low","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":5.6,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":3.7,"severity":"low","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":5.6,"impact":2.3,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":2,"severity":"low","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":3.7,"severity":"low","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00247,"percentile":0.14972,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.060000000000000005,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00187},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00247,"percentile":0.14972}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00187,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00238,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00247,"percentile":0.14972}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-158","name":"Improper Neutralization of Null Byte or NUL Character","description":"The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component.","type":"weakness","status":"Incomplete","abstraction":"Variant","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/158.html"}],"affected":[{"vendor":"debian","product":"mongo-c-driver","name":"mongo-c-driver","label":"mongo-c-driver","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/mongo-c-driver","purlType":"deb","versions":[{"text":"< 1.23.1-1+deb12u3","noFixRecorded":false,"fixedIn":null},{"text":"< 1.30.4-1+deb13u2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.2.3-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.23.1-1+deb12u3 | < 1.30.4-1+deb13u2 | < 2.2.3-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mongo-c-driver","name":"mongo-c-driver","label":"mongo-c-driver","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mongo-c-driver","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"mongodb inc","product":"mongodb c driver","name":"MongoDB C Driver","label":"mongodb c driver","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2.2.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.2.3","eol":null,"hubHref":"/vendor/mongodb_inc/mongodb_c_driver"},{"vendor":"mongodb","product":"c_driver","name":"c driver","label":"c_driver","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.30.8","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.2.0, < 2.2.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.30.8 | ≥ 2.2.0, < 2.2.3","eol":null,"hubHref":"/vendor/mongodb/c_driver"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://jira.mongodb.org/browse/CDRIVER-6251","label":"jira.mongodb.org/browse/CDRIVER-6251","hostname":"jira.mongodb.org","tags":["REPORT","Patch","Vendor Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-4359","label":"ubuntu.com/security/CVE-2026-4359","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-4359","label":"www.cve.org/CVERecord?id=CVE-2026-4359","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-4359","label":"security-tracker.debian.org/tracker/CVE-2026-4359","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-03-17T19:42:03.476Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-18T20:00:06.747Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":15,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T07:04:51.114Z","stale":false,"partial":false}}