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CVE-2026-15588

🗓️ 20 Jul 2026 12:12:06Reported by redhatType 
cve
 cve🔗 web.nvd.nist.gov👁 108 Views

CVE-2026-15588: GDBus in GLib risks pre-authentication denial of service from unbounded SASL buffering.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in IBM Operator for PostgreSQL
20 Aug 202623:55
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container UBI updates
14 Sep 202610:00
–ibm
attackerkb
ATTACKERKB		CVE-2026-15588
20 Jul 202612:12
–attackerkb
nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0268: glib2 (ALINUX3-SA-2026:0268)
1 Sep 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 9 : glib2 (ALSA-2026:55440)
18 Aug 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 10 : glib2 (ALSA-2026:57015)
20 Aug 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : glib2 (ALSA-2026:61766)
1 Sep 202600:00
–nessus
nessus
Tenable Nessus		CentOS 9 : glib2-2.68.4-29.el9
26 Aug 202600:00
–nessus
nessus
Tenable Nessus		Fedora 44 : mingw-glib2 (2026-2dfeac0818)
8 Aug 202600:00
–nessus
nessus
Tenable Nessus		MiracleLinux 9 : glib2-2.68.4-19.el9_8.9 (AXSA:2026-1638:13)
24 Aug 202600:00
–nessus
Rows per page
Vulners
Node
OR
redhatenterprise_linuxMatch10.2
redhatenterprise_linux_eusMatch10.0
redhatrhel_elsMatch7
redhatenterprise_linuxMatch8crb
redhatenterprise_linuxMatch8baseos
redhatrhel_ausMatch8.4baseos
redhatrhel_eus_long_lifeMatch8.4baseos
redhatrhel_ausMatch8.6baseos
redhatrhel_eus_long_lifeMatch8.6baseos
redhatrhel_e4sMatch8.8baseos
redhatrhel_tusMatch8.8baseos
redhatenterprise_linuxMatch9appstream
redhatenterprise_linuxMatch9crb
redhatenterprise_linuxMatch9baseos
redhatrhel_e4sMatch9.2appstream
redhatrhel_e4sMatch9.2baseos
redhatrhel_e4sMatch9.4appstream
redhatrhel_e4sMatch9.4baseos
redhatrhel_eusMatch9.6appstream
redhatrhel_eusMatch9.6crb
redhatrhel_eusMatch9.6baseos
redhatcert_managerMatch1.19el9
redhatdiscoveryMatch2el9
redhathummingbirdMatch1
redhatrhuiMatch5el9
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  {
    "vendor": "Red Hat",
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    "versions": [
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        "lessThan": "*",
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      }
    ],
    "cpes": [
      "cpe:/o:redhat:rhel_e4s:8.8::baseos",
      "cpe:/o:redhat:rhel_tus:8.8::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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        "lessThan": "*",
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      }
    ],
    "cpes": [
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      "cpe:/o:redhat:rhel_tus:8.8::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
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      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::crb",
      "cpe:/o:redhat:enterprise_linux:9::baseos"
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  {
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  {
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  },
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    "vendor": "Red Hat",
    "product": "Cert Manager support for Red Hat OpenShift release 1.19",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
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  {
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    ]
  },
  {
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    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "mingw-glib2",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "mingw-glib2",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift Container Platform 4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "openshift/ose-rhel-coreos-8",
    "defaultStatus": "affected",
    "cpes": [
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    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift Container Platform 4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "openshift/ose-rhel-coreos-9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:openshift:4"
    ]
  }
]

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Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

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10 Sep 2026 18:17Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.15.3
EPSS0.00225
SSVC
CWE-770
CVE-2026-15588GDBusGLibdenial of serviceresource exhaustionunbounded bufferingSASL linespre authenticationmemory exhaustionsystem hang
108