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ALSA-2026:49512 — Important: mingw-glib2 security update

Affected: AlmaLinux:8: mingw32-glib2, AlmaLinux:8: mingw32-glib2-static, AlmaLinux:8: mingw64-glib2, AlmaLinux:8: mingw64-glib2-static

GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures.

Security Fix(es):

* glib: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087) * glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal() (CVE-2026-58010) * glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid GDateTime (CVE-2026-58011) * glib: buffer over-read in g_regex_replace() via glib/gregex.c:string_append() and g_utf8_next_char() (CVE-2026-58012) * glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend" (CVE-2026-58013) * glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" (CVE-2026-58014) * glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive (CVE-2026-58015) * glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" (CVE-2026-58016)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

BELL-CVE-2026-58015

Affected: Alpaquita:stream: glib

certfr-2026-avi-0873 — De multiples vulnérabilités ont été découvertes dans Microsoft Azure Linux. Elles permettent à un attaquant de provoque…

certfr-2026-avi-0873

EUVD-2026-382038

fkie_cve-2026-58015

A flaw was found in GLib. The D-Bus client-side implementation of the DBUS_COOKIE_SHA1 SASL authentication mechanism does not validate the cookie_context parameter received from the server. A malicious D-Bus server can supply a cookie_context containing path traversal sequences, causing the client to read an arbitrary file and exfiltrate sensitive data by verifying guessed file contents against a generated hash.

GHSA-hmpf-72wc-2r6x

msrc_CVE-2026-58015 — Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive

msrc_CVE-2026-58015

OESA-2026-3109 — glib2 security update

Affected: openEuler:22.03-LTS-SP4: glib2

GLib is a bundle of three (formerly five) low-level system libraries written in C and developed mainly by GNOME. GLib&apos;s code was separated from GTK, so it can be used by software other than GNOME and has been developed in parallel ever since. Security Fix(es):

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.(CVE-2026-1489)

A flaw was found in GLib. An off-by-one error can occur in the gvs_tuple_is_normal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses > instead of >=, causing an out-of-bounds read of only 1 byte. This issue can cause a minor information disclosure of 1 byte and a denial of service when the out-of-bounds read crosses a page boundary.(CVE-2026-58010)

A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the g_date_time_get_ymd function in the glib/gdatetime.c file when an invalid GDateTime object produced by the g_date_time_add_full function is processed. This flaw can corrupt the date output and potentially cause logic errors that may lead to a denial of service.(CVE-2026-58011)

A flaw was found in GLib. A b…

RHSA-2026:49512 — Red Hat Security Advisory: mingw-glib2 security update

glib: GLib: Buffer underflow in GVariant parser leads to heap corruption glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal() glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid GDateTime glib: buffer over-read in g_regex_replace() via glib/gregex.c:string_append() and g_utf8_next_char() glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend" glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

RHSA-2026:55440 — Red Hat Security Advisory: glib2 security update

GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal() glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid GDateTime glib: buffer over-read in g_regex_replace() via glib/gregex.c:string_append() and g_utf8_next_char() glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend" glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive

RLSA-2026:49512 — Important: mingw-glib2 security update

Affected: Rocky Linux:8: mingw-glib2

Security Fix(es):

* glib: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087)

* glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal() (CVE-2026-58010)

* glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid GDateTime (CVE-2026-58011)

* glib: buffer over-read in g_regex_replace() via glib/gregex.c:string_append() and g_utf8_next_char() (CVE-2026-58012)

* glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend" (CVE-2026-58013)

* glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" (CVE-2026-58014)

* glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive (CVE-2026-58015)

* glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" (CVE-2026-58016)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

UBUNTU-CVE-2026-58015

Affected: Ubuntu:Pro:14.04:LTS: glib2.0, Ubuntu:Pro:16.04:LTS: glib2.0, Ubuntu:Pro:18.04:LTS: glib2.0, Ubuntu:Pro:20.04:LTS: glib2.0, Ubuntu:22.04:LTS: glib2.0, Ubuntu:24.04:LTS: glib2.0, Ubuntu:25.10: glib2.0, Ubuntu:26.04:LTS: glib2.0

WID-SEC-W-2026-2866 — Red Hat Enterprise Linux (glib2): Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux (glib2) ausnutzen, um einen Denial of Service Angriff durchzuführen und um Informationen offenzulegen.