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CVE-2026-0708
HIGH8.3
Description
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.
CVE Details
CVSS v3.1 Score8.3
SeverityHIGH
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:H
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
Published3/17/2026
Last Modified3/17/2026
Sourcenvd
Honeypot Sightings0
Weaknesses (CWE)
CWE-125
References
https://access.redhat.com/security/cve/CVE-2026-0708(patrick@puiterwijk.org)
https://bugzilla.redhat.com/show_bug.cgi?id=2427770(patrick@puiterwijk.org)
https://github.com/vstakhov/libucl/issues/323(patrick@puiterwijk.org)
https://github.com/vstakhov/libucl/issues/323(134c704f-9b21-4f2e-91b3-4a467353bcc0)
IOC Correlations
No correlations recorded
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