CVEvulnerability
CVE-2026-0708
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-17
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:H
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-125
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.
Affected configurations
• vstakhov libucl (<= 0.9.4)
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- 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