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Krb5: mit krb5 kadmind unauthenticated memory leak dos in rpcsec_gss buffer decode failure

CVSS 3.1 5.3 MEDIUMCheck source for fixed versionsKEV status unknown

Historical advisory recorded 9 Nov 2026 21:02:10 UTC. Read the latest advisory.

cve-program · CVE-2026-112315

Published

The RPCSEC_GSS authentication routines in lib/rpc/authgss_prot.c in MIT Kerberos 5 (aka krb5) 1.4 and later do not free partially decoded buffers on failure, which allows remote attackers to cause a denial of service (memory leak in kadmind) via crafted RPCSEC_GSS messages.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-112315

Published

Krb5: mit krb5 kadmind unauthenticated memory leak dos in rpcsec_gss buffer decode failure

The RPCSEC_GSS authentication routines in lib/rpc/authgss_prot.c in MIT Kerberos 5 (aka krb5) 1.4 and later do not free partially decoded buffers on failure, which allows remote attackers to cause a denial of service (memory leak in kadmind) via crafted RPCSEC_GSS messages.

Source published
9 Nov 2026 19:07:47 UTC
Source modified
9 Nov 2026 19:07:47 UTC
Saved here
9 Nov 2026 21:02:10 UTC
Source terms
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Original source record · Cite this exact observation · Complete original publisher JSON

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

ChangeIntel

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Sources read 12 Nov 19:39 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current