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...

EUVD-2026-3598

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

CVE-2025-12781 concerns the base64 module in Python, where b64decode(), standard_b64decode(), and urlsafe_b64decode() historically accept the characters "+/" regardless of the altchars parameter. The connected sources confirm this behavior and note that newer RFCs recommend restricting to the spe...

PSF-2026-7

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...

Incomplete List of Disallowed Inputs

Overview Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs in the b64decode, standardb64decode, and urlsafeb64decode functions when the altchars parameter is used. An attacker can cause logical errors or compromise data integrity by submitting input containi...

CPython security vulnerabilities

CPython is a Python interpreter implemented in C language by the Python Foundation. CPython has security vulnerabilities, where functions such as b64decode, standardb64decode, and urlsafeb64decode always accept the + and/or character, which may lead to data integrity issues...

CVE-2025-59355 Apache Linkis: Password Exposure

A vulnerability. When org.apache.linkis.metadata.util.HiveUtils.decode fails to perform Base64 decoding, it records the complete input parameter string in the log via logger.errorstr + "decode failed", e. If the input parameter contains sensitive information such as Hive Metastore keys, plaintext...

CVE-2025-59355 Apache Linkis: Password Exposure

A vulnerability. When org.apache.linkis.metadata.util.HiveUtils.decode fails to perform Base64 decoding, it records the complete input parameter string in the log via logger.errorstr + "decode failed", e. If the input parameter contains sensitive information such as Hive Metastore keys, plaintext...

CVE-2025-59355

A vulnerability. When org.apache.linkis.metadata.util.HiveUtils.decode fails to perform Base64 decoding, it records the complete input parameter string in the log via logger.errorstr + "decode failed", e. If the input parameter contains sensitive information such as Hive Metastore keys, plaintext...

CVE-2025-59355 Apache Linkis: Password Exposure

A vulnerability. When org.apache.linkis.metadata.util.HiveUtils.decode fails to perform Base64 decoding, it records the complete input parameter string in the log via logger.errorstr + "decode failed", e. If the input parameter contains sensitive information such as Hive Metastore keys, plaintext...

CVE-2025-59355

Apache Linkis CVE-2025-59355 affects 1.0.0–1.7.0, where HiveUtils.decode() may log the full input parameter on Base64 decode failure, risking leakage of sensitive values (e.g., hive-site.xml passwords) if error logs are readable. A fix is available in 1.8.0+ that desensitizes the log (logger.erro...

Apache Linkis security vulnerabilities

Apache Linkis is a middleware product developed by the Apache Foundation in the United States. It enables effective connections between upper-level applications and underlying data engines. Versions of Apache Linkis prior to 1.7.0 contain security vulnerabilities. These vulnerabilities stem from...

MiracleLinux 3 : glib2-2.12.3-4AXS3.1 (AXSA:2009-31:01)

The remote MiracleLinux 3 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2009-31:01 advisory. GLib is the low-level core library that forms the basis for projects such as GTK+ and GNOME. It provides data structure handling for C, portability wrappers, a...

CVE-2021-47812

GravCMS 1.10.7 contains an unauthenticated vulnerability that allows remote attackers to write arbitrary YAML configuration and execute PHP code through the scheduler endpoint. Attackers can exploit the admin-nonce parameter to inject base64-encoded payloads and create malicious custom jobs with...

SUSE CVE-2026-22858

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c = ...

CVE-2021-47812

GravCMS 1.10.7 contains an unauthenticated vulnerability that allows remote attackers to write arbitrary YAML configuration and execute PHP code through the scheduler endpoint. Attackers can exploit the admin-nonce parameter to inject base64-encoded payloads and create malicious custom jobs with...

CVE-2021-47812

GravCMS 1.10.7 contains an unauthenticated vulnerability that allows remote attackers to write arbitrary YAML configuration and execute PHP code through the scheduler endpoint. Attackers can exploit the admin-nonce parameter to inject base64-encoded payloads and create malicious custom jobs with...

CVE-2021-47812

GravCMS 1.10.7 is affected by CVE-2021-47812, with an unauthenticated vulnerability that allows remote attackers to write arbitrary YAML configuration and execute PHP code via the scheduler endpoint. Exploitation centers on the admin-nonce parameter to inject base64-encoded payloads and create ma...

CVE-2021-47812 GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2)

GravCMS 1.10.7 contains an unauthenticated vulnerability that allows remote attackers to write arbitrary YAML configuration and execute PHP code through the scheduler endpoint. Attackers can exploit the admin-nonce parameter to inject base64-encoded payloads and create malicious custom jobs with...