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CVE-2026-26986 FreeRDP has heap-use-after-free in rail_window_free

🗓️ 25 Feb 2026 21:01:16Reported by GoogleType 
osv
 osv🔗 osv.dev👁 1 Views

FreeRDP before 3.23.0 has a heap-use-after-free in rail_window_free during HashTable_Free cleanup due to a freed xfAppWindow pointer.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-26986
25 Feb 202621:01
–attackerkb
Tenable Nessus		Amazon Linux 2023 : freerdp, freerdp-devel, freerdp-libs (ALAS2023-2026-1512)
1 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : freerdp, --advisory ALAS2-2026-3221 (ALAS-2026-3221)
1 Apr 202600:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0116: freerdp (ALINUX3-SA-2026:0116)
25 May 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : freerdp (ALSA-2026:16014)
13 May 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : freerdp (ALSA-2026:16482)
16 May 202600:00
–nessus
Tenable Nessus		MiracleLinux 8 : freerdp-2.11.7-9.el8_10 (AXSA:2026-607:17)
12 May 202600:00
–nessus
Tenable Nessus		MiracleLinux 9 : freerdp-2.11.7-1.el9_7.7 (AXSA:2026-628:18)
18 May 202600:00
–nessus
Tenable Nessus		openSUSE 16 Security Update : freerdp2 (openSUSE-SU-2026:20632-1)
2 May 202600:00
–nessus
Tenable Nessus		Oracle Linux 10 : freerdp (ELSA-2026-16014)
11 May 202600:00
–nessus
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SourceLink
githubwww.github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c
githubwww.github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c
githubwww.github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c
githubwww.github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c
githubwww.github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c
githubwww.github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c
githubwww.github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26986.json
githubwww.github.com/FreeRDP/FreeRDP/security/advisories/GHSA-crqx-g6x5-rx47
nvdwww.nvd.nist.gov/vuln/detail/CVE-2026-26986
githubwww.github.com/FreeRDP/FreeRDP/commit/b4f0f0a18fe53aa8d47d062f91471f4e9c5e0d51
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16 May 2026 14:15Current
5.9Medium risk
Vulners AI Score5.9
CVSS 46.9
EPSS0.00476
FreeRDPrail window freexfAppWindow pointerhash table free
1