CVE-2026-0708
Libucl: libucl: denial of service via embedded null byte in ucl input
- State
- Published
- Severity
- 8.3 High
- Published
- Mar 17, 2026
- Updated
- Mar 17, 2026
- Reserved
- Jan 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:H | fedora |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
libucllibucl |
|
References
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