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 10.0 Extended Update Support0:2.80.4-4.el10_0.17
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support0:2.56.1-13.el7_9.1
Red HatRed Hat Enterprise Linux 80:2.56.4-177.el8_10
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:2.56.4-10.el8_4.7
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On0:2.56.4-10.el8_4.7
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0:2.56.4-158.el8_6.7
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0:2.56.4-158.el8_6.7
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0:2.56.4-165.el8_8.2
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0:2.56.4-165.el8_8.2
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 Enterprise Linux 9.2 Update Services for SAP Solutions0:2.68.4-7.el9_2.7
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions0:2.68.4-14.el9_4.8
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support0:2.68.4-16.el9_6.7
Red HatCert Manager support for Red Hat OpenShift release 1.171791371080
Red HatCert Manager support for Red Hat OpenShift release 1.171791371069
Red HatCert Manager support for Red Hat OpenShift release 1.171791788287
Red HatCert Manager support for Red Hat OpenShift release 1.171791378395
Red HatCert Manager support for Red Hat OpenShift release 1.171791970484

…and 165 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 24, 2026 EPSS Score
  • Aug 25, 2026 Distribution Patch
  • Aug 26, 2026 EPSS Score
  • Sep 1, 2026 EPSS Score
  • Sep 1, 2026 Distribution Patch

References

…and 58 more

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