CVE-2026-58016— Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| GNOME | GLib | < 2.88.1 | affected |
| Red Hat | Red Hat Enterprise Linux 10 | any | affected |
any | affected | ||
| Red Hat | Red Hat Enterprise Linux 6 | any | affected |
| Red Hat | Red Hat Enterprise Linux 7 | any | affected |
| Red Hat | Red Hat Enterprise Linux 8 | any | affected |
any | affected | ||
| Red Hat | Red Hat Enterprise Linux 9 | any | affected |
any | affected | ||
| Red Hat | Red Hat Hardened Images | any | unaffected |
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I. Basic Information for CVE-2026-58016
Vulnerability Information
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Vulnerability Title
Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数下溢(超界折返)
Source: NVD (National Vulnerability Database)
Vulnerability Title
GNOME GLib 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNOME glib是GNOME基金会开源的一个通用的、可移植的实用程序库。提供了许多有用的数据类型、宏、类型转换、字符串实用程序、文件实用程序、主循环抽象等。 GLib 2.88.1之前版本存在数字错误漏洞，该漏洞源于在g_dbus_node_info_new_for_xml()函数处理格式错误的D-Bus introspection XML时存在状态混淆问题，具体为<node>元素嵌套在<method>、<signal>、<property>或<arg>等其他元素内，可能导致无符号整数溢出并引发越界读
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| GNOME | GLib | 0 ~ 2.88.1 | - | |
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Red Hat | Red Hat Hardened Images | - | cpe:/a:redhat:hummingbird:1 |
II. Public POCs for CVE-2026-58016
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-58016 (2)
Other References for CVE-2026-58016 (1)
Same Patch Batch · GNOME · 2026-06-30 · 7 CVEs total
| CVE-2026-58014 | 7.3 HIGH | Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" |
| CVE-2026-58011 | 6.5 MEDIUM | Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime |
| CVE-2026-58013 | 6.5 MEDIUM | Glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend" |
| CVE-2026-58012 | 6.5 MEDIUM | Glib: buffer over-read in g_regex_replace() via glib/gregex.c:string_append() and g_utf8_n |
| CVE-2026-58010 | 6.5 MEDIUM | Glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal() |
| CVE-2026-58015 | 5.9 MEDIUM | Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mec |
IV. Related Vulnerabilities
Same product: GLib
- CVE-2026-58015
Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c vi - CVE-2026-58014
Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_ge - CVE-2026-58013
Glib: buffer over-read in glib/giochannel.c via "g_io_channe - CVE-2026-58012
Glib: buffer over-read in g_regex_replace() via glib/gregex. - CVE-2026-58010
Glib: buffer over-read in glib/gvariant-serialiser.c via gvs
Same vendor: GNOME
- CVE-2026-58015
Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c vi - CVE-2026-58014
Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_ge - CVE-2026-58013
Glib: buffer over-read in glib/giochannel.c via "g_io_channe - CVE-2026-58012
Glib: buffer over-read in g_regex_replace() via glib/gregex. - CVE-2026-58010
Glib: buffer over-read in glib/gvariant-serialiser.c via gvs
Same weakness: CWE-191
- CVE-2026-6685
FatFs Integer Underflow in Dirty-Sector Cache Flush - CVE-2026-58058
Nmap - Integer Underflow in IPv6 Extension Header Parsing - CVE-2026-57918
Ronnie Sahlberg libnfs 数字错误漏洞 - CVE-2026-6678
Integer underflow in wc_PKCS7_DecryptOri handling crafted Ot - CVE-2026-30803
Integer Underflow (Wrap or Wraparound) vulnerability in RTI
V. Comments for CVE-2026-58016
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