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glib2.0 vulnerabilities

Vulnerabilities published for glib2.0 in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 14

  1. CVE-2026-58016

    High · CVSS 7.5EPSS 0.55%No fix published

    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.

    Published Updated
  2. CVE-2026-58015

    Medium · CVSS 5.9EPSS 0.84%No fix published

    Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive

    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.

    Published Updated
  3. CVE-2026-58014

    High · CVSS 7.3EPSS 0.56%No fix published

    Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list"

    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.

    Published Updated
  4. CVE-2026-58013

    Medium · CVSS 6.5EPSS 0.5%No fix published

    Glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend"

    A flaw was found in GLib. A buffer over-read can occur in g_io_channel_read_line_backend() in the giochannel.c file when a custom line terminator with a length greater than one is set, causing memcmp to read past the GString buffer. This vulnerability can cause a minor information disclosure of 7 bytes or a denial of service when the buffer over-read crosses a page boundary.

    Published Updated
  5. CVE-2026-58012

    Medium · CVSS 6.5EPSS 0.49%No fix published

    Glib: buffer over-read in g_regex_replace() via glib/gregex.c:string_append() and g_utf8_next_char()

    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.

    Published Updated
  6. CVE-2026-58011

    Medium · CVSS 6.5EPSS 0.47%No fix published

    Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime

    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.

    Published Updated
  7. CVE-2026-58010

    Medium · CVSS 6.5EPSS 0.49%No fix published

    Glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal()

    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.

    Published Updated
  8. CVE-2026-1489

    Medium · CVSS 5.4EPSS 0.37%Fix available

    Glib: glib: memory corruption via integer overflow in unicode case conversion

    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.

    • Update to 2.86.0-2ubuntu0.3
    Published Updated
  9. CVE-2026-1485

    Low · CVSS 2.8EPSS 0.16%Fix available

    Glib: glib: local denial of service via buffer underflow in content type parsing

    A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because the length of a header line is stored in a signed integer, which can lead to integer wraparound for very large inputs. This results in pointer underflow and out-of-bounds memory access. Exploitation requires a local user to install or process a specially crafted treemagic file, which can lead to local denial of service or application instability.

    • Update to 2.86.0-2ubuntu0.3
    Published Updated
  10. CVE-2026-1484

    Medium · CVSS 4.2EPSS 0.34%Fix available

    Glib: integer overflow leading to buffer underflow and out-of-bounds write in glib g_base64_encode()

    A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes outside the allocated buffer. Applications that process untrusted or extremely large Base64 input using GLib may crash or behave unpredictably.

    • Update to 2.86.0-2ubuntu0.3
    Published Updated
  11. CVE-2026-0988

    Low · CVSS 3.7EPSS 0.43%Fix available

    Glib: glib: denial of service via integer overflow in g_buffered_input_stream_peek()

    A flaw was found in glib. Missing validation of offset and count parameters in the g_buffered_input_stream_peek() function can lead to an integer overflow during length calculation. When specially crafted values are provided, this overflow results in an incorrect size being passed to memcpy(), triggering a buffer overflow. This can cause application crashes, leading to a Denial of Service (DoS).

    • Update to 2.86.0-2ubuntu0.2
    Published Updated
  12. CVE-2025-14512

    Medium · CVSS 6.5EPSS 0.58%Fix available

    Glib: integer overflow in glib gio attribute escaping causes heap buffer overflow

    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.

    • Update to 2.86.0-2ubuntu0.1
    Published Updated
  13. CVE-2025-14087

    Medium · CVSS 5.6EPSS 0.83%Fix available

    Glib: glib: buffer underflow in gvariant parser leads to heap corruption

    A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap corruption, leading to a denial of service or potential code execution via a buffer-underflow in the GVariant parser when processing maliciously crafted input strings.

    • Update to 2.86.0-2ubuntu0.1
    Published Updated
  14. CVE-2025-13601

    High · CVSS 7.7EPSS 0.32%Fix available

    Glib: integer overflow in in g_escape_uri_string()

    A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.

    • Update to 2.86.0-2ubuntu0.1
    Published Updated

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