CVE-2026-58010

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.

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.

GLib is a bundle of three (formerly five) low-level system libraries written in C and developed mainly by GNOME. GLib'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 buffer over-read can occur in the g_regex_replace function when used with the G_REGEX_RAW compile flag and case-change replacement escapes because the string_append function processes matched substrings using UTF-8 functions that assume valid UTF-8 input, even when the string is treated as raw bytes. This vulnerability can cause a minor information disclosure of 1-5 bytes and a denial of service when the buffer over-read crosses a page boundary.(CVE-2026-58012)

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.(CVE-2026-58014)

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.(CVE-2026-58015)

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.(CVE-2026-58016)

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 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 buffer over-read can occur in the g_regex_replace function when used with the G_REGEX_RAW compile flag and case-change replacement escapes because the string_append function processes matched substrings using UTF-8 functions that assume valid UTF-8 input, even when the string is treated as raw bytes. This vulnerability can cause a minor information disclosure of 1-5 bytes and a denial of service when the buffer over-read crosses a page boundary.(CVE-2026-58012)

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.(CVE-2026-58014)

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.(CVE-2026-58015)

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.(CVE-2026-58016)

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 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 buffer over-read can occur in the g_regex_replace function when used with the G_REGEX_RAW compile flag and case-change replacement escapes because the string_append function processes matched substrings using UTF-8 functions that assume valid UTF-8 input, even when the string is treated as raw bytes. This vulnerability can cause a minor information disclosure of 1-5 bytes and a denial of service when the buffer over-read crosses a page boundary.(CVE-2026-58012)

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.(CVE-2026-58014)

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.(CVE-2026-58015)

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.(CVE-2026-58016)

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 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 buffer over-read can occur in the g_regex_replace function when used with the G_REGEX_RAW compile flag and case-change replacement escapes because the string_append function processes matched substrings using UTF-8 functions that assume valid UTF-8 input, even when the string is treated as raw bytes. This vulnerability can cause a minor information disclosure of 1-5 bytes and a denial of service when the buffer over-read crosses a page boundary.(CVE-2026-58012)

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.(CVE-2026-58014)

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.(CVE-2026-58015)

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.(CVE-2026-58016)

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 vulnerability was found in GNOME GLib (the affected version unknown). It has been declared as critical. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.(CVE-2025-14087)

A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service (DoS) via an integer overflow in GLib's GIO (GLib Input/Output) escape_byte_string() function when processing malicious file or remote filesystem attribute values.(CVE-2025-14512)

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 buffer over-read can occur in the g_regex_replace function when used with the G_REGEX_RAW compile flag and case-change replacement escapes because the string_append function processes matched substrings using UTF-8 functions that assume valid UTF-8 input, even when the string is treated as raw bytes. This vulnerability can cause a minor information disclosure of 1-5 bytes and a denial of service when the buffer over-read crosses a page boundary.(CVE-2026-58012)

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.(CVE-2026-58014)

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.(CVE-2026-58015)

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.(CVE-2026-58016)

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.

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: 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)

• GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering (CVE-2026-15588)

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.

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: 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)

• GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering (CVE-2026-15588)

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.

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: 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)

• GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering (CVE-2026-15588)

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.

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.

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.

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: 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)
• GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering (CVE-2026-15588)

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.

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: 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)
• GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering (CVE-2026-15588)

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.

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: 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)
• GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering (CVE-2026-15588)

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.

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: fix an off-by-one out-of-bounds read in GVariant normal-form checking (gvs_tuple_is_normal)
• CVE-2026-58011: reject out-of-range results in g_date_time_add_full() instead of returning an invalid GDateTime
• CVE-2026-58012: use byte-wise case changing in g_regex_replace() substitutions under G_REGEX_RAW
• CVE-2026-58013: avoid a memcmp() read past the buffer end in g_io_channel_read_line() with multi-byte line terminators

• CVE-2026-58010: fix an off-by-one out-of-bounds read in GVariant normal-form checking (gvs_tuple_is_normal)
• CVE-2026-58011: reject out-of-range results in g_date_time_add_full() instead of returning an invalid GDateTime
• CVE-2026-58012: use byte-wise case changing in g_regex_replace() substitutions under G_REGEX_RAW
• CVE-2026-58013: avoid a memcmp() read past the buffer end in g_io_channel_read_line() with multi-byte line terminators

• CVE-2026-58010: fix an off-by-one out-of-bounds read in GVariant normal-form checking (gvs_tuple_is_normal)
• CVE-2026-58011: reject out-of-range results in g_date_time_add_full() instead of returning an invalid GDateTime
• CVE-2026-58012: use byte-wise case changing in g_regex_replace() substitutions under G_REGEX_RAW
• CVE-2026-58013: avoid a memcmp() read past the buffer end in g_io_channel_read_line() with multi-byte line terminators

• CVE-2026-58010: heap buffer over-read (off-by-one) in gvs_tuple_is_normal() in glib/gvariant-serialiser.c when checking untrusted tuple GVariant data for normal form
• CVE-2026-58012: buffer over-read in g_regex_replace()/g_regex_replace_eval() when a G_REGEX_RAW match ends in a truncated multi-byte sequence and a case-change escape is applied

• SECURITY UPDATE: Multiple vulnerabilities in glib2
  • debian/patches/CVE-2026-58010.patch: Fix off-by-one out-of-bounds read in gvs_tuple_is_normal() during GVariant normal-form checking.
  • debian/patches/CVE-2026-58011.patch: Add missing range validation to g_date_time_add_full() to reject out-of-range GDateTime values.
  • debian/patches/CVE-2026-58012.patch: Fix buffer overflow in case-changing regex substitutions when G_REGEX_RAW is set.
  • debian/patches/CVE-2026-58013.patch: Fix memcmp() read past end of buffer with multi-byte line terminators in giochannel.
  • CVE-2026-58010
  • CVE-2026-58011
  • CVE-2026-58012
  • CVE-2026-58013

• SECURITY UPDATE: off-by-one out-of-bounds read in GVariant normal-form checking
  • debian/patches/CVE-2026-58010.patch: fix an off-by-one offset comparison in gvs_tuple_is_normal()
  • CVE-2026-58010
• SECURITY UPDATE: out-of-range GDateTime creation leading to out-of-bounds reads in getter functions
  • debian/patches/CVE-2026-58011.patch: add missing range validation to g_date_time_add_full()
  • CVE-2026-58011
• SECURITY UPDATE: buffer over-read in g_regex_replace() case-change substitutions under G_REGEX_RAW
  • debian/patches/CVE-2026-58012.patch: operate on bytes instead of UTF-8 characters when changing case of raw-mode matches
  • CVE-2026-58012
• SECURITY UPDATE: memcmp() buffer over-read in g_io_channel_read_line() with multi-byte line terminators
  • debian/patches/CVE-2026-58013.patch: check the remaining buffer length against the line terminator length before memcmp()
  • CVE-2026-58013

• SECURITY UPDATE: off-by-one out-of-bounds read in GVariant normal-form checking
  • debian/patches/CVE-2026-58010.patch: fix an off-by-one offset comparison in gvs_tuple_is_normal()
  • CVE-2026-58010
• SECURITY UPDATE: out-of-range GDateTime creation leading to out-of-bounds reads in getter functions
  • debian/patches/CVE-2026-58011.patch: add missing range validation to g_date_time_add_full()
  • CVE-2026-58011
• SECURITY UPDATE: buffer over-read in g_regex_replace() case-change substitutions under G_REGEX_RAW
  • debian/patches/CVE-2026-58012.patch: operate on bytes instead of UTF-8 characters when changing case of raw-mode matches
  • CVE-2026-58012
• SECURITY UPDATE: memcmp() buffer over-read in g_io_channel_read_line() with multi-byte line terminators
  • debian/patches/CVE-2026-58013.patch: check the remaining buffer length against the line terminator length before memcmp()
  • CVE-2026-58013

• CVE-2026-58010: fix an off-by-one out-of-bounds read in GVariant normal-form checking (gvs_tuple_is_normal)
• CVE-2026-58011: reject out-of-range results in g_date_time_add_full() instead of returning an invalid GDateTime
• CVE-2026-58012: use byte-wise case changing in g_regex_replace() substitutions under G_REGEX_RAW
• CVE-2026-58013: avoid a memcmp() read past the buffer end in g_io_channel_read_line() with multi-byte line terminators

• CVE-2026-58010: heap buffer over-read (off-by-one) in gvs_tuple_is_normal() in glib/gvariant-serialiser.c when checking untrusted tuple GVariant data for normal form
• CVE-2026-58012: buffer over-read in g_regex_replace()/g_regex_replace_eval() when a G_REGEX_RAW match ends in a truncated multi-byte sequence and a case-change escape is applied

• CVE-2026-58010: fix one-byte heap over-read in gvs_tuple_is_normal() by changing the offset bounds check from '>' to '>=' (glib/gvariant-serialiser.c)
• CVE-2026-58011: validate the days field in g_date_time_add_full() to prevent an out-of-bounds read in g_date_time_get_ymd() (glib/gdatetime.c)
• CVE-2026-58012: fix buffer over-read in g_regex_replace() with G_REGEX_RAW by splitting UTF-8 vs raw code paths in string_append() (glib/gregex.c)
• CVE-2026-58013: fix out-of-bounds read in g_io_channel_read_line_backend() by bounding memcmp() length to the remaining buffer (glib/giochannel.c)

This update for glib2 fixes the following issues:

• CVE-2026-58010: error during gvs_tuple_is_normal alignment validation could cause a 1-byte out-of-bounds read (bsc#1270009).
• CVE-2026-58011: invalid GDateTime in g_date_time_get_ymd could trigger a 2-byte out-of-bounds read (bsc#1270010).
• CVE-2026-58012: raw byte regex matches with UTF-8 functions during case-change replacements could cause an out-of- bounds read (bsc#1270016).
• CVE-2026-58013: multi-byte custom line terminator in g_io_channel_read_line_backend could trigger an out-of-bounds read (bsc#1270018).
• CVE-2026-58014: processing empty key file values in g_key_file_get_locale_string_list could cause a 1-byte out-of- bounds access (bsc#1270021).
• CVE-2026-58016: malformed D-Bus introspection XML could trigger an unsigned integer overflow (bsc#1270008).

Root has patched CVE-2026-58010 in the glib package for Root:Alpine:3.23. Multiple fixed versions available.

Root has patched CVE-2026-58010 in the glib2.0 package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2026-58010 in the glib2.0 package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2026-58010 in the glib2.0 package for Root:Debian:13. Multiple fixed versions available.

This update for glib2 fixes the following issues:

• CVE-2026-58010: error during gvs_tuple_is_normal alignment validation could cause a 1-byte out-of-bounds read (bsc#1270009).
• CVE-2026-58011: invalid GDateTime in g_date_time_get_ymd could trigger a 2-byte out-of-bounds read (bsc#1270010).
• CVE-2026-58012: raw byte regex matches with UTF-8 functions during case-change replacements could cause an out-of- bounds read (bsc#1270016).
• CVE-2026-58013: multi-byte custom line terminator in g_io_channel_read_line_backend could trigger an out-of-bounds read (bsc#1270018).
• CVE-2026-58014: processing empty key file values in g_key_file_get_locale_string_list could cause a 1-byte out-of- bounds access (bsc#1270021).
• CVE-2026-58016: malformed D-Bus introspection XML could trigger an unsigned integer overflow (bsc#1270008).

This update for glib2 fixes the following issues:

• CVE-2026-58010: error during gvs_tuple_is_normal alignment validation could cause a 1-byte out-of-bounds read (bsc#1270009).
• CVE-2026-58011: invalid GDateTime in g_date_time_get_ymd could trigger a 2-byte out-of-bounds read (bsc#1270010).
• CVE-2026-58012: raw byte regex matches with UTF-8 functions during case-change replacements could cause an out-of- bounds read (bsc#1270016).
• CVE-2026-58013: multi-byte custom line terminator in g_io_channel_read_line_backend could trigger an out-of-bounds read (bsc#1270018).
• CVE-2026-58014: processing empty key file values in g_key_file_get_locale_string_list could cause a 1-byte out-of- bounds access (bsc#1270021).
• CVE-2026-58016: malformed D-Bus introspection XML could trigger an unsigned integer overflow (bsc#1270008).

This update for glib2 fixes the following issues:

• CVE-2026-58010: error during gvs_tuple_is_normal alignment validation could cause a 1-byte out-of-bounds read (bsc#1270009).
• CVE-2026-58011: invalid GDateTime in g_date_time_get_ymd could trigger a 2-byte out-of-bounds read (bsc#1270010).
• CVE-2026-58012: raw byte regex matches with UTF-8 functions during case-change replacements could cause an out-of- bounds read (bsc#1270016).
• CVE-2026-58013: multi-byte custom line terminator in g_io_channel_read_line_backend could trigger an out-of-bounds read (bsc#1270018).
• CVE-2026-58014: processing empty key file values in g_key_file_get_locale_string_list could cause a 1-byte out-of- bounds access (bsc#1270021).
• CVE-2026-58016: malformed D-Bus introspection XML could trigger an unsigned integer overflow (bsc#1270008).

This update for glib2 fixes the following issues

• CVE-2026-58010: error during gvs_tuple_is_normal alignment validation could cause a 1-byte out-of-bounds read (bsc#1270009).
• CVE-2026-58011: invalid GDateTime in g_date_time_get_ymd could trigger a 2-byte out-of-bounds read (bsc#1270010).
• CVE-2026-58012: raw byte regex matches with UTF-8 functions during case-change replacements could cause an out-of- bounds read (bsc#1270016).
• CVE-2026-58013: multi-byte custom line terminator in g_io_channel_read_line_backend could trigger an out-of-bounds read (bsc#1270018).
• CVE-2026-58014: processing empty key file values in g_key_file_get_locale_string_list could cause a 1-byte out-of- bounds access (bsc#1270021).
• CVE-2026-58016: malformed D-Bus introspection XML could trigger an unsigned integer overflow (bsc#1270008).