VDB

CVE-2026-15588

CVE-2026-15588 PUBLISHED CVSS 5.3 MEDIUM

Reported by redhat · Published July 20, 2026

A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input validation by sending excessively long streams of data, causing the application to consume massive amounts of system memory and CPU, potentially leading to a crash or system hang.

Risk Scores

CVSS 3.1
5.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected Products

VendorProductVersions
Red HatRed Hat Enterprise Linux 100:2.80.4-12.el10_2.21
Red HatRed Hat Enterprise Linux 90:2.68.4-19.el9_8.9
Red HatRed Hat Enterprise Linux 90:2.68.4-19.el9_8.9
Red HatRed Hat Hardened Images2.89.1-1.1.hum1
Red HatRed Hat Hardened Images2.89.1-1.2.hum1
Red HatRed Hat Hardened Images2.89.2-2.hum1
Red HatRed Hat Enterprise Linux 10
Red HatRed Hat Enterprise Linux 6
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 8
Red HatRed Hat Enterprise Linux 8
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat OpenShift Container Platform 4
Red HatRed Hat Enterprise Linux 6
Red HatRed Hat OpenShift Container Platform 4
Red HatRed Hat Enterprise Linux 8
Red HatRed Hat Enterprise Linux 100:2.80.4-12.el10_2.21, 0:2.80.4-12.el10_2.21
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 8

…and 4 more

Timeline

  • Jul 20, 2026 CVE Published
  • Jul 21, 2026 Security Advisory
  • Aug 7, 2026 EPSS Score
  • Aug 17, 2026 Distribution Patch
  • Aug 17, 2026 Security Advisory
  • Aug 19, 2026 Distribution Patch
  • Aug 19, 2026 Security Advisory
  • Aug 21, 2026 Distribution Patch
  • Aug 21, 2026 Distribution Patch
  • Aug 22, 2026 Distribution Patch
  • Aug 22, 2026 Distribution Patch
  • Aug 22, 2026 Distribution Patch

References

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