8.3

CVE-2026-0708

Exploit

Libucl: libucl: denial of service via embedded null byte in ucl input

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Vstakhov ≫ Libucl Version <= 0.9.4
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.39% 0.304
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
patrick@puiterwijk.org 8.3 2.8 5.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

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