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CVE-2026-1757

MEDIUM
Memory Leak (CWE-401)
2026-02-02 secalert@redhat.com
Information Disclosure
6.2
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.2 MEDIUM
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
MEDIUM
qualitative
Red Hat
6.2 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Patch released
Apr 09, 2026 - 14:30 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:01 vuln.today
CVE Published
Feb 02, 2026 - 13:15 nvd
MEDIUM 6.2

DescriptionCVE.org

A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system.

AnalysisAI

Local denial of service in libxml2's xmllint interactive shell allows an unprivileged local user to exhaust system memory by repeatedly submitting whitespace-only input, which triggers a memory leak that accumulates until the process terminates. The vulnerability stems from improper buffer deallocation when command execution is skipped for whitespace input. No patch is currently available.

Technical ContextAI

Classified as CWE-401 (Memory Leak). A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service conditio

Affected ProductsAI

A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not prope

RemediationAI

Monitor vendor advisories for a patch.

Same weakness CWE-401 – Memory Leak

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container private-registry/harbor-portal:1.1.1-1.29 Container suse/multi-linux-manager/5.1/x86_64/proxy-httpd:5.1.2.8.15.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-salt-broker:5.1.2.9.13.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-squid:5.1.2.8.13.1 Container suse/multi-linux-manager/5.1/x86_64/server-migration-14-16:5.1.2.8.13.1 Container suse/multi-linux-manager/5.1/x86_64/server-postgresql:5.1.2.6.13.1 Container suse/multi-linux-manager/5.1/x86_64/server-saline:5.1.2.9.13.1 Image SLES15-SP7-CHOST-BYOS-Aliyun Image SLES15-SP7-CHOST-BYOS-Azure Image SLES15-SP7-CHOST-BYOS-EC2 Image SLES15-SP7-CHOST-BYOS-GCE Image SLES15-SP7-CHOST-BYOS-GDC Image SLES15-SP7-CHOST-BYOS-SAP-CCloud Image SLES15-SP7-GCE-3P Image SLES15-SP7-HPC-BYOS-EC2 Image proxy-httpd-image Image proxy-salt-broker-image Image proxy-squid-image Image server-database-migration-image Image server-image Image server-postgresql-image Image server-saline-image Affected
Container suse/ltss/sle12.5/sles12sp5:8.5.205 Affected
Container suse/manager/4.3/proxy-httpd:4.3.16.2.9.73.16 Affected
Container suse/manager/5.0/x86_64/proxy-httpd:latest Affected
Container suse/manager/5.0/x86_64/server:latest Affected

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CVE-2026-1757 vulnerability details – vuln.today
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