{"api_version":"1","generated_at":"2026-11-12T14:03:31+00:00","cve":"CVE-2026-112317","urls":{"html":"https://cve.report/CVE-2026-112317","api":"https://cve.report/api/cve/CVE-2026-112317.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-112317","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-112317"},"summary":{"title":"Krb5: mit krb5 kdc unauthenticated memory leak dos in kdb keytab key decryption error path","description":"krb5_ktkdb_get_entry() in lib/kdb/keytab.c in MIT Kerberos 5 (aka krb5) 1.2.8 and later does not free decrypted key material when a post-decryption check fails, which allows remote attackers to cause a denial of service (memory leak in the KDC or kadmind) via requests that repeatedly trigger key decryption failures.","state":"PUBLISHED","assigner":"redhat","published_at":"2026-11-09 19:16:40","updated_at":"2026-11-12 13:17:10"},"problem_types":["CWE-772","CWE-772 Missing Release of Resource after Effective Lifetime"],"metrics":[{"version":"3.1","source":"secalert@redhat.com","type":"Secondary","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","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:L","version":"3.1"}}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-112317","name":"https://access.redhat.com/security/cve/CVE-2026-112317","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2026:99624","name":"https://access.redhat.com/errata/RHSA-2026:99624","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479209","name":"https://bugzilla.redhat.com/show_bug.cgi?id=2479209","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-112317","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112317","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","version":"unaffected 0:1.21.3-11.el10_3.2 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Hardened Images","version":"","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-05-18T03:32:25.000Z","lang":"en","value":"Reported to Red Hat."},{"source":"CNA","time":"2026-11-09T15:00:00.000Z","lang":"en","value":"Made public."}],"solutions":[],"workarounds":[{"source":"CNA","title":"","value":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.","time":"","lang":"en"}],"exploits":[],"credits":[{"source":"CNA","value":"This issue was discovered by Found by AISLE in partnership with Red Hat.","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.3"],"defaultStatus":"affected","packageName":"krb5","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.21.3-11.el10_3.2","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:rhel_els:6"],"defaultStatus":"unknown","packageName":"krb5","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:rhel_els:7"],"defaultStatus":"affected","packageName":"krb5","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"krb5","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"krb5","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"krb5","product":"Red Hat Hardened Images","vendor":"Red Hat"}],"credits":[{"lang":"en","value":"This issue was discovered by Found by AISLE in partnership with Red Hat."}],"datePublic":"2026-11-09T15:00:00.000Z","descriptions":[{"lang":"en","value":"krb5_ktkdb_get_entry() in lib/kdb/keytab.c in MIT Kerberos 5 (aka krb5) 1.2.8 and later does not free decrypted key material when a post-decryption check fails, which allows remote attackers to cause a denial of service (memory leak in the KDC or kadmind) via requests that repeatedly trigger key decryption failures."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","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:L","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-772","description":"Missing Release of Resource after Effective Lifetime","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-12T12:56:55.968Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"name":"RHSA-2026:99624","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:99624"},{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-112317"},{"name":"RHBZ#2479209","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479209"}],"timeline":[{"lang":"en","time":"2026-05-18T03:32:25.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-11-09T15:00:00.000Z","value":"Made public."}],"title":"Krb5: mit krb5 kdc unauthenticated memory leak dos in kdb keytab key decryption error path","workarounds":[{"lang":"en","value":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}],"x_generator":{"engine":"cvelib 1.8.0"},"x_redhatCweChain":"CWE-772: Missing Release of Resource after Effective Lifetime"}},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2026-112317","datePublished":"2026-11-09T19:07:58.372Z","dateReserved":"2026-10-19T14:25:20.662Z","dateUpdated":"2026-11-12T12:56:55.968Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-09 19:16:40","lastModifiedDate":"2026-11-12 13:17:10","problem_types":["CWE-772","CWE-772 Missing Release of Resource after Effective Lifetime"],"metrics":{"cvssMetricV31":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":1.4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"112317","Ordinal":"1","Title":"Krb5: mit krb5 kdc unauthenticated memory leak dos in kdb keytab","CVE":"CVE-2026-112317","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"112317","Ordinal":"1","NoteData":"krb5_ktkdb_get_entry() in lib/kdb/keytab.c in MIT Kerberos 5 (aka krb5) 1.2.8 and later does not free decrypted key material when a post-decryption check fails, which allows remote attackers to cause a denial of service (memory leak in the KDC or kadmind) via requests that repeatedly trigger key decryption failures.","Type":"Description","Title":"Krb5: mit krb5 kdc unauthenticated memory leak dos in kdb keytab"}]}}}