Krb5: mit krb5 kdc unauthenticated memory leak dos in kdb keytab key decryption error path
Historical advisory recorded 9 Nov 2026 21:02:10 UTC. Read the latest advisory.
cve-program · CVE-2026-112317
Publishedkrb5_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.
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cve-program · CVE-2026-112317
PublishedKrb5: mit krb5 kdc unauthenticated memory leak dos in kdb keytab key decryption error path
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.
- Source published
- 9 Nov 2026 19:07:58 UTC
- Source modified
- 9 Nov 2026 19:07:58 UTC
- Saved here
- 9 Nov 2026 21:02:10 UTC
- Source terms
- CVE Program Terms of Use
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Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L