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TI-2026-15093 Aliases CVE-2026-18358GHSA-5hp4-5mvq-qw3w

Uncontrolled resource consumption in gnome-remote-desktop

Priority MEDIUM 40CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daemon is running in system mode with RDP enabled, the incoming connection handler bypasses the connection throttler, allowing an unauthenticated remote attacker to open many parallel pre-authentication connections to the RDP listener. This can accumulate accepted sockets and pending routing-token operations until timeout, exhausting resources and preventing legitimate users from establishing RDP sessions. This issue does not affect the upstream version.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00663 51st percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GNOMEgnome-remote-desktop——Not affectedCNA
Red HatRed Hat Enterprise Linux 10—49.3-4.el10_2Patch availableCNA
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support—47.3-3.el10_0.1Patch availableCNA
Red HatRed Hat Enterprise Linux 8——Not affectedCNA
Red HatRed Hat Enterprise Linux 9——Not affectedCNA
  • gnome-remote-desktop VendorGNOME Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 49.3-4.el10_2 Patch available CNA
  • Red Hat Enterprise Linux 10.0 Extended Update Support VendorRed Hat Affected — Fixed in 47.3-3.el10_0.1 Patch available CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE names CNA · 4

CPEVersionsRoleVendor
cpe:/o:redhat:enterprise_linux:10.210.2—Red Hat
cpe:/o:redhat:enterprise_linux_eus:10.010.0—Red Hat
cpe:/a:redhat:enterprise_linux:88—Red Hat
cpe:/a:redhat:enterprise_linux:99—Red Hat
  • cpe:/o:redhat:enterprise_linux:10.2 Versions 10.2 — ·Red Hat
  • cpe:/o:redhat:enterprise_linux_eus:10.0 Versions 10.0 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:8 Versions 8 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:9 Versions 9 — ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2026:86194 Released 2026-10-20 · Red Hat rating Moderate
    gnome-remote-desktop security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) gnome-remote-desktop-47.3-3.el10_0.1
  • RHSA-2026:54512 Released 2026-08-13 · Red Hat rating Moderate
    gnome-remote-desktop security update
    • Red Hat Enterprise Linux AppStream (v. 10) gnome-remote-desktop-49.3-4.el10_2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:54512
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:86194
Not affected: 2 products
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18358
  2. 2026-10-03 Alias added: GHSA-5hp4-5mvq-qw3w
  3. 2026-10-21 Fix available: gnome-remote-desktop@0:47.3-3.el10_0.1 · CNA
  4. 2026-10-21 1 new reference · CNA
  5. 2026-10-21 Fix available: RHSA-2026:86194 · Red Hat
  6. 2026-10-21 Fix available: Red Hat Enterprise Linux AppStream EUS (v. 10.0) · Red Hat
  7. 2026-10-25 EPSS moved to the 50th–90th percentile
  8. 2026-10-25 Priority changed: LOW → MEDIUM

References

Advisory 2

Other 2

  • TI-2023-23091 Gnome-maps: gnome maps is vulnerable to a code injection attack (similar to xss) via its service.json CVSS 3.1CRITICAL 9.8
  • TI-2026-41775 Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" CVSS 3.1HIGH 8.6
  • TI-2026-41772 Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime CVSS 3.1HIGH 7.5
  • TI-2026-03716 Libsoup: libsoup: denial of service via use-after-free in http/2 server CVSS 3.1HIGH 7.5
  • TI-2024-28393 Integer overflow in GNOME G Structured File Library CVSS 3.1HIGH 8.4
  • TI-2024-24253 Integer overflow in GNOME G Structured File Library CVSS 3.1HIGH 8.4
See all 402 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences