Description
A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
References10
- access.redhat.com/errata/RHSA-2026:86331
- access.redhat.com/errata/RHSA-2026:86841
- access.redhat.com/errata/RHSA-2026:86842
- access.redhat.com/errata/RHSA-2026:86921
- access.redhat.com/errata/RHSA-2026:92212
- access.redhat.com/errata/RHSA-2026:92213
- access.redhat.com/errata/RHSA-2026:92214
- access.redhat.com/errata/RHSA-2026:92218
- access.redhat.com/errata/RHSA-2026:92336
- access.redhat.com/errata/RHSA-2026:92353
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 47 · as of 9 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.