CVE-2026-0708

A flaw was found in libucl. A remote attacker could exploit this by providing a specially crafted Universal Configuration Language (UCL) input that contains a key with an embedded null byte. This can cause a segmentation fault (SEGV fault) in the `ucl_object_emit` function when parsing and emitting the object, leading to a Denial of Service (DoS) for the affected system.

CVSS v3 8.3 HIGH

8.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-0708	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2427770	Issue Tracking Third Party Advisory
https://github.com/vstakhov/libucl/issues/323	Exploit Issue Tracking Vendor Advisory
https://github.com/vstakhov/libucl/issues/323	Exploit Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vstakhov:libucl:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-17 04:16

Updated : 2026-06-17 10:11

NVD link : CVE-2026-0708

Mitre link : CVE-2026-0708

CVE.ORG link : CVE-2026-0708

JSON object : View

Products Affected

vstakhov

libucl

CWE

CWE-125

Out-of-bounds Read

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