CVE-2026-1484 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 untrust...

CVE-2026-1484

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 untrust...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write via the gbase64encodeclose function. An attacker can cause memory corruption or application crashes by providing excessively large or untrusted input data. Remediation A fix was pushed into the master branch but not...

Glib buffer error vulnerability

GLib is a general-purpose, portable utility library for the GNOME project. It provides many useful data types, macros, type conversions, string utilities, file utilities, and abstraction for main loops. GLib has a buffer error vulnerability, which stems from the Base64 encoding routine’s improper...

Malicious VS Code AI Extensions with 1.5 Million Installs Steal Developer Source Code

Cybersecurity researchers have discovered two malicious Microsoft Visual Studio Code VS Code extensions that are advertised as artificial intelligence AI-powered coding assistants, but also harbor covert functionality to siphon developer data to China-based servers. The extensions, which have 1.5...

BIT-PYTHON-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

BIT-PYTHON-MIN-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

BIT-LIBPYTHON-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

SUSE CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

SUSE-SU-2026:20156-1 Security update for gdk-pixbuf

This update for gdk-pixbuf fixes the following issues: - CVE-2025-7345: heap buffer overflow in gdk-pixbuf within the gdkpixbufjpegimageloadincrement function io-jpeg.c and in glib gbase64encodestep bsc1246114. - CVE-2025-6199: uninitialized memory could lead to leak arbitrary memory contents...

SUSE-SU-2026:20128-1 Security update for gdk-pixbuf

This update for gdk-pixbuf fixes the following issues: - CVE-2025-7345: heap buffer overflow in gdk-pixbuf within the gdkpixbufjpegimageloadincrement function io-jpeg.c and in glib gbase64encodestep bsc1246114. - CVE-2025-6199: uninitialized memory could lead to leak arbitrary memory contents...

Linux Distros Unpatched Vulnerability : CVE-2025-12781

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the base64 module the characters +/ will always be accepted, regardless...

DEBIAN-CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

AZL-75225 CVE-2025-12781 affecting package python3 3.9.19-19

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

AZL-75231 CVE-2025-12781 affecting package python3 3.12.9-9

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...