High severity7.5NVD Advisory· Published Feb 25, 2026· Updated Jun 17, 2026
CVE-2026-26986
CVE-2026-26986
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, rail_window_free dereferences a freed xfAppWindow pointer during HashTable_Free cleanup because xf_rail_window_common calls free(appWindow) on title allocation failure without first removing the entry from the railWindows hash table, leaving a dangling pointer that is freed again on disconnect. Version 3.23.0 fixes the vulnerability.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10- osv-coords7 versionspkg:rpm/almalinux/freerdppkg:rpm/almalinux/freerdp-develpkg:rpm/almalinux/freerdp-libspkg:rpm/almalinux/freerdp-serverpkg:rpm/almalinux/libwinprpkg:rpm/almalinux/libwinpr-develpkg:rpm/opensuse/freerdp2&distro=openSUSE%20Tumbleweed
< 2:3.10.3-5.el10_1.8+ 6 more
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2.11.7-8.1
Patches
Vulnerability mechanics
References
8- github.com/FreeRDP/FreeRDP/commit/b4f0f0a18fe53aa8d47d062f91471f4e9c5e0d51nvdPatch
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-crqx-g6x5-rx47nvdExploitPatchVendor Advisory
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdProduct
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdProduct
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdProduct
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdProduct
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdProduct
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdProduct
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