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Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a `node` element nested within other elements like `method`, `signal`, `property` or `arg`. This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.

GLibRed Hat Enterprise Linux 10Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat Enterprise Linux 8Red Hat Enterprise Linux 8Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat Enterprise Linux 9Red Hat Enterprise Linux 9Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat Enterprise Linux 9.6 Extended Update SupportCert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.20Cert Manager support for Red Hat OpenShift release 1.20Cert Manager support for Red Hat OpenShift release 1.20Cert Manager support for Red Hat OpenShift release 1.20Cert Manager support for Red Hat OpenShift release 1.20Cert Manager support for Red Hat OpenShift release 1.20Cert Manager support for Red Hat OpenShift release 1.20Cert Manager support for Red Hat OpenShift release 1.20Red Hat Discovery 2Red Hat Discovery 2Red Hat Insights proxy 1.5Red Hat OpenShift AI 3.0Red Hat OpenShift AI 3.0Red Hat OpenShift AI 3.0Red Hat OpenShift AI 3.0Red Hat OpenShift AI 3.0Red Hat OpenShift AI 3.2Red Hat OpenShift AI 3.2Red Hat OpenShift AI 3.2Red Hat OpenShift AI 3.2Red Hat OpenShift AI 3.2Red Hat OpenShift AI 3.2Red Hat OpenShift AI 3.4Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9Red Hat Hardened ImagesCVE-2026-58016
Structured advisory · Revision 1Original source
Evidence and details

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-58016

GLib

Source reference: /containers/cna/affected/0/product

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Red Hat Enterprise Linux 10

Source reference: /containers/cna/affected/1/product

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Red Hat Enterprise Linux 10.0 Extended Update Support

Source reference: /containers/cna/affected/2/product

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Red Hat Enterprise Linux 7 Extended Lifecycle Support

Source reference: /containers/cna/affected/3/product

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Red Hat Enterprise Linux 8

Source reference: /containers/cna/affected/4/product

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Red Hat Enterprise Linux 8

Source reference: /containers/cna/affected/5/product

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Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Source reference: /containers/cna/affected/6/product

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Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Source reference: /containers/cna/affected/7/product

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Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Source reference: /containers/cna/affected/8/product

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Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Source reference: /containers/cna/affected/9/product

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Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Source reference: /containers/cna/affected/10/product

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Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

Source reference: /containers/cna/affected/11/product

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Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/12/product

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Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/13/product

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Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Source reference: /containers/cna/affected/14/product

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Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Source reference: /containers/cna/affected/15/product

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Red Hat Enterprise Linux 9.6 Extended Update Support

Source reference: /containers/cna/affected/16/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/17/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/18/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/19/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/20/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/21/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/22/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/23/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/24/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/25/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/26/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/27/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/28/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/29/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/30/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/31/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/32/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/33/product

Affected versions
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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/34/product

Affected versions
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Red Hat Discovery 2

Source reference: /containers/cna/affected/35/product

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Red Hat Discovery 2

Source reference: /containers/cna/affected/36/product

Affected versions
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Not stated in this record

Red Hat Insights proxy 1.5

Source reference: /containers/cna/affected/37/product

Affected versions
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Not stated in this record
Prerequisites
Not stated in this record

Red Hat OpenShift AI 3.0

Source reference: /containers/cna/affected/38/product

Affected versions
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Red Hat OpenShift AI 3.0

Source reference: /containers/cna/affected/39/product

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Red Hat OpenShift AI 3.0

Source reference: /containers/cna/affected/40/product

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Red Hat OpenShift AI 3.0

Source reference: /containers/cna/affected/41/product

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Red Hat OpenShift AI 3.0

Source reference: /containers/cna/affected/42/product

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Red Hat OpenShift AI 3.2

Source reference: /containers/cna/affected/43/product

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Red Hat OpenShift AI 3.2

Source reference: /containers/cna/affected/44/product

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Red Hat OpenShift AI 3.2

Source reference: /containers/cna/affected/45/product

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Red Hat OpenShift AI 3.2

Source reference: /containers/cna/affected/46/product

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Red Hat OpenShift AI 3.2

Source reference: /containers/cna/affected/47/product

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Red Hat OpenShift AI 3.2

Source reference: /containers/cna/affected/48/product

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Red Hat OpenShift AI 3.4

Source reference: /containers/cna/affected/49/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/50/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/51/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/52/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/53/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/54/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/55/product

Affected versions
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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/56/product

Affected versions
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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/57/product

Affected versions
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Red Hat Enterprise Linux 10

Source reference: /containers/cna/affected/58/product

Affected versions
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Red Hat Enterprise Linux 6

Source reference: /containers/cna/affected/59/product

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Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/60/product

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Red Hat Hardened Images

Source reference: /containers/cna/affected/61/product

Affected versions
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Related CVEs
CVE-2026-58016

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#23047 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement