Libxslt: type confusion in exsltfuncresultcompfunction of libxslt
CVE-2025-11731 is fixed in 11 products on 1 platform, first by libxslt1.1 1.1.43-0.3, released October 13, 2025. It is not reported as exploited. Patch Radar priority: Routine.
A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may treat an XML document node as a regular XML element node, resulting in a type confusion. This can cause unexpected memory reads and potential crashes. While difficult to exploit, the flaw could lead to application instability or denial of service.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libxslt · Debian 14 | 1.1.43-0.3 | DEBIAN-CVE-2025-11731 | Oct 14, 2025 |
| libxslt · opensuse-leap 15.6 | 1.1.34-150400.3.13.1 | SUSE-SU-2025:3875-1 | Oct 30, 2025 |
| libxslt · opensuse-leap 16.0 | 1.1.43-160000.3.1 | OPENSUSE-SU-2025:20050-1 | Nov 19, 2025 |
| libxslt · sles 15.6 | 1.1.34-150400.3.13.1 | SUSE-SU-2025:3875-1 | Oct 30, 2025 |
| libxslt · sles 15.7 | 1.1.34-150400.3.13.1 | SUSE-SU-2025:3875-1 | Oct 30, 2025 |
| libxslt · sles 16.0 | 1.1.43-160000.3.1 | SUSE-SU-2025:21008-1 | Nov 19, 2025 |
| libxslt-python · opensuse-leap 15.6 | 1.1.32-150000.3.28.1 | SUSE-SU-2025:3743-1 | Oct 23, 2025 |
| libxslt1.1 · Ubuntu 26.04.1 LTS (resolute) | 1.1.43-0.3 | libxslt1.1 1.1.43-0.3 | Oct 13, 2025 |
| mingw-libxslt · Fedora 43 | 1.1.43-4.fc43 | FEDORA-2026-84BE018D47 | Jan 13, 2026 |
| mingw32-libxslt · Fedora 43 | 1.1.43-4.fc43 | FEDORA-2026-84BE018D47 | Jan 13, 2026 |
| mingw32-libxslt-debuginfo · Fedora 43 | 1.1.43-4.fc43 | FEDORA-2026-84BE018D47 | Jan 13, 2026 |
| mingw32-libxslt-static · Fedora 43 | 1.1.43-4.fc43 | FEDORA-2026-84BE018D47 | Jan 13, 2026 |
| mingw64-libxslt · Fedora 43 | 1.1.43-4.fc43 | FEDORA-2026-84BE018D47 | Jan 13, 2026 |
| mingw64-libxslt-debuginfo · Fedora 43 | 1.1.43-4.fc43 | FEDORA-2026-84BE018D47 | Jan 13, 2026 |
| mingw64-libxslt-static · Fedora 43 | 1.1.43-4.fc43 | FEDORA-2026-84BE018D47 | Jan 13, 2026 |
| xsltproc · Ubuntu 26.04.1 LTS (resolute) | 1.1.43-0.3 | xsltproc 1.1.43-0.3 | Oct 13, 2025 |
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