CVE-2026-86143
6.9
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| xmlsoft | libxml2 | 0 < 2.15.4 | affected |
Weaknesses
- CWE-192: CWE-192 Integer Coercion Error
References
- https://github.com/GNOME/libxml2/compare/v2.15.3…v2.15.4
- https://github.com/GNOME/libxml2/commit/90f293ba74d28b1d570920382e707586f68ebf35
- https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1111
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.