CVE-2026-56968

GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.

CVSS v3 3.7 LOW

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://ftp.gnu.org/gnu/gsasl/	Product
https://lists.debian.org/debian-security-announce/2026/msg00259.html	Mailing List
https://lists.gnu.org/archive/html/help-gsasl/2026-06/msg00000.html	Exploit Mailing List Vendor Advisory
https://www.gnu.org/software/gsasl/	Product
https://lists.debian.org/debian-lts-announce/2026/07/msg00049.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:sasl:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:13.0:*:*:*:*:*:*:*

History

31 Jul 2026, 06:16

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2026/07/msg00049.html -

29 Jun 2026, 23:00

Type	Values Removed	Values Added
CPE		cpe:2.3:o:debian:debian_linux:13.0:::::::* cpe:2.3:a:gnu:sasl::::::::
CWE		CWE-908
References	~~() https://ftp.gnu.org/gnu/gsasl/ -~~	() https://ftp.gnu.org/gnu/gsasl/ - Product
References	~~() https://lists.debian.org/debian-security-announce/2026/msg00259.html -~~	() https://lists.debian.org/debian-security-announce/2026/msg00259.html - Mailing List
References	~~() https://lists.gnu.org/archive/html/help-gsasl/2026-06/msg00000.html -~~	() https://lists.gnu.org/archive/html/help-gsasl/2026-06/msg00000.html - Exploit, Mailing List, Vendor Advisory
References	~~() https://www.gnu.org/software/gsasl/ -~~	() https://www.gnu.org/software/gsasl/ - Product
First Time		Debian Debian debian Linux Gnu Gnu sasl

23 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-23 17:17

Updated : 2026-07-31 06:16

NVD link : CVE-2026-56968

Mitre link : CVE-2026-56968

CVE.ORG link : CVE-2026-56968

JSON object : View

Products Affected

gnu

sasl

debian

debian_linux

CWE

CWE-839

Numeric Range Comparison Without Minimum Check

CWE-908

Use of Uninitialized Resource

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