Bug 2442782 (CVE-2026-26986) - CVE-2026-26986 freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect
Summary: CVE-2026-26986 freerdp: FreeRDP: Denial of Service via double free vulnerabil...
Keywords:
Status: NEW
Alias: CVE-2026-26986
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On: 2442802 2442805 2442812 2442837 2442814
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-25 22:02 UTC by OSIDB Bzimport
Modified: 2026-02-25 23:14 UTC (History)
0 users

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Description OSIDB Bzimport 2026-02-25 22:02:12 UTC 
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.
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