Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vstakhov | Libucl | <= 0.9.4 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2026-0708Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2427770Third Party AdvisoryIssue Tracking
- https://github.com/vstakhov/libucl/issues/323Issue TrackingVendor AdvisoryExploit
- https://github.com/vstakhov/libucl/issues/323Issue TrackingVendor AdvisoryExploit
FAQ
What is CVE-2026-0708?
CVE-2026-0708 is a vulnerability with a CVSS score of 8.3 (HIGH). 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 ...
How severe is CVE-2026-0708?
CVE-2026-0708 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-0708?
Check the references section above for vendor advisories and patch information. Affected products include: Vstakhov Libucl.