{"schemaVersion":3,"id":"CVE-2026-3832","aliases":["ALPINE-CVE-2026-3832","UBUNTU-CVE-2026-3832","DEBIAN-CVE-2026-3832"],"status":"published","duplicateOf":null,"title":null,"description":"A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a client with OCSP verification enabled may incorrectly accept a revoked server certificate, potentially leading to a compromise of trust.","dates":{"published":"2026-04-30T17:41:28.896Z","modified":"2026-10-14T19:45:46.353Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":3.7,"severity":"low","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":3.7,"severity":"low","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Alpine","score":3.7,"severity":"low","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","exploitability":5.6,"impact":2.3,"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:L/I:N/A:N","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:L/I:N/A:N","exploitability":5.6,"impact":2.3,"computed":true},{"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:L/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00926,"percentile":0.59809,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.18699999999999992,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00739},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00926,"percentile":0.59809}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00739,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0085,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00926,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00926,"percentile":0.59809}]},"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":[{"id":"REF_5DEB7BD74C34B359","name":"Exploit Reference (gitlab.com)","source":"reference","url":"https://gitlab.com/gnutls/gnutls/-/issues/1801","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-179","name":"Incorrect Behavior Order: Early Validation","description":"The product validates input before applying protection mechanisms that modify the input, which could allow an attacker to bypass the validation via dangerous inputs that only arise after the modification.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/179.html"}],"affected":[{"vendor":"alpine","product":"gnutls","name":"gnutls","label":"gnutls","ecosystem":"Alpine Linux","cpePart":null,"purl":"pkg:apk/alpine/gnutls","purlType":"apk","versions":[{"text":"< 3.8.13-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.8.13-r0","eol":null,"hubHref":null},{"vendor":"debian","product":"gnutls28","name":"gnutls28","label":"gnutls28","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/gnutls28","purlType":"deb","versions":[{"text":"< 3.8.9-3+deb13u4","noFixRecorded":false,"fixedIn":null},{"text":"< 3.8.13-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.8.9-3+deb13u4 | < 3.8.13-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"gnutls28","name":"gnutls28","label":"gnutls28","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/gnutls28","purlType":"deb","versions":[{"text":"< 3.7.3-4ubuntu1.9","noFixRecorded":false,"fixedIn":null},{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 3.7.3-4ubuntu1.9+Fips1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.8.3-1.1ubuntu3.6","noFixRecorded":false,"fixedIn":null},{"text":"< 3.8.3-1.1ubuntu3.6+Fips1.2","noFixRecorded":false,"fixedIn":null},{"text":"< 3.8.9-3ubuntu2.2","noFixRecorded":false,"fixedIn":null},{"text":"< 3.8.12-2ubuntu1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.7.3-4ubuntu1.9 | All versions (No fix recorded) | < 3.7.3-4ubuntu1.9+Fips1 | < 3.8.3-1.1ubuntu3.6 | < 3.8.3-1.1ubuntu3.6+Fips1.2 | < 3.8.9-3ubuntu2.2 | < 3.8.12-2ubuntu1.1","eol":null,"hubHref":null},{"vendor":"gnu","product":"gnutls","name":"gnutls","label":"gnutls","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/gnu/gnutls"},{"vendor":"redhat","product":"enterprise_linux","name":"enterprise linux","label":"enterprise_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"6.0","noFixRecorded":false,"fixedIn":null},{"text":"7.0","noFixRecorded":false,"fixedIn":null},{"text":"8.0","noFixRecorded":false,"fixedIn":null},{"text":"9.0","noFixRecorded":false,"fixedIn":null},{"text":"10.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"6.0 | 7.0 | 8.0 | 9.0 | 10.0","eol":{"isEol":true,"eolDate":"2020-11-30T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"6","label":"6 (ELS)","eolFrom":"2020-11-30T00:00:00.000Z","isLts":true,"isMaintained":false,"latestVersion":"6.10"},"product":{"name":"rhel","label":"Red Hat Enterprise Linux","category":"os"}},"hubHref":"/vendor/redhat/enterprise_linux"},{"vendor":"redhat","product":"hardened_images","name":"hardened images","label":"hardened_images","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/redhat/hardened_images"},{"vendor":"redhat","product":"openshift_container_platform","name":"openshift container platform","label":"openshift_container_platform","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"4.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"4.0","eol":null,"hubHref":"/vendor/redhat/openshift_container_platform"}],"affectedCount":7,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:13274","label":"access.redhat.com/errata/RHSA-2026:13274","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:20612","label":"access.redhat.com/errata/RHSA-2026:20612","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:20613","label":"access.redhat.com/errata/RHSA-2026:20613","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26319","label":"access.redhat.com/errata/RHSA-2026:26319","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26409","label":"access.redhat.com/errata/RHSA-2026:26409","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:29197","label":"access.redhat.com/errata/RHSA-2026:29197","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:58981","label":"access.redhat.com/errata/RHSA-2026:58981","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:72502","label":"access.redhat.com/errata/RHSA-2026:72502","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-3832","label":"access.redhat.com/security/cve/CVE-2026-3832","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT","Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445762","label":"bugzilla.redhat.com/show_bug.cgi?id=2445762","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT","Third Party Advisory"]},{"url":"https://gitlab.com/gnutls/gnutls/-/issues/1801","label":"gitlab.com/gnutls/gnutls/-/issues/1801","hostname":"gitlab.com","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-3832","label":"security.alpinelinux.org/vuln/CVE-2026-3832","hostname":"security.alpinelinux.org","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-3832","label":"ubuntu.com/security/CVE-2026-3832","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-3832","label":"www.cve.org/CVERecord?id=CVE-2026-3832","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-12","label":"www.gnutls.org/security-new.html","hostname":"www.gnutls.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-8284-1","label":"ubuntu.com/security/notices/USN-8284-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-3832","label":"security-tracker.debian.org/tracker/CVE-2026-3832","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3832","label":"nvd.nist.gov/vuln/detail/CVE-2026-3832","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82304","label":"access.redhat.com/errata/RHSA-2026:82304","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82322","label":"access.redhat.com/errata/RHSA-2026:82322","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82347","label":"access.redhat.com/errata/RHSA-2026:82347","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82354","label":"access.redhat.com/errata/RHSA-2026:82354","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82372","label":"access.redhat.com/errata/RHSA-2026:82372","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82857","label":"access.redhat.com/errata/RHSA-2026:82857","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82888","label":"access.redhat.com/errata/RHSA-2026:82888","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:10691-1","RHSA-2026:13274","RHSA-2026:20612","RHSA-2026:20613","RHSA-2026:26409"],"duplicates":[],"related":["OPENSUSE-SU-2026:10691-1","USN-8284-1"]},"timeline":[{"kind":"published","date":"2026-04-30T17:41:28.896Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-14T19:45:46.353Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":25,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:27:42.222Z","stale":false,"partial":false}}