Detections
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Echo: krb5: security update to 1.21.3-5+e9

high Tenable Self-Hosted Container Security Plugin ID 474348

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - MIT Kerberos 5 (krb5) through 1.22.2 contains a NULL pointer dereference in make_cred_list() in rd_cred.c
 that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays.
 Attackers can send forwarded credentials with more tickets than ticket_info entries through
 gss_accept_sec_context() to crash GSS-API acceptor services, causing denial of service. (CVE-2026-107778)

Solution

Update the krb5 library and its related packages to version 1.21.3-5+e9 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-107778

Plugin Details

Severity: High

ID: 474348

Version: Revision 1.1

Type: Local

Published: 10/11/2026

Updated: 10/11/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.67

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-107778

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/9/2026

Vulnerability Publication Date: 10/8/2026

Reference Information

CVE: CVE-2026-107778