CVE-2026-86143
- State
- Published
- Severity
- 6.9 Medium
- Published
- Sep 5, 2026
- Updated
- Sep 8, 2026
- Reserved
- Sep 5, 2026
Description
In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling writecallback. This has security relevance for many types of uses of that length value within a callback.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.9 Medium | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L | mitre |
Weaknesses
- CWE-192 Integer Coercion Error
Affected Products
| Product | Versions |
|---|---|
libxml2xmlsoft |
|
References
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