Security Research

Security Blog

Page 71

critical8 min

Heap Buffer Overflow in BLOB.cpp: How Unchecked memcpy Calls Create Critical Vulnerabilities

A critical heap buffer overflow vulnerability was discovered and patched in BLOB.cpp, where multiple memcpy calls failed to validate that the number of bytes being copied would fit within the destination buffer. Left unaddressed, an attacker with influence over input parameters could corrupt heap memory, potentially leading to arbitrary code execution or application crashes. This post breaks down how the vulnerability works, how it was fixed, and what developers can do to prevent similar issues

#security#c++#buffer-overflow+4 more
O
orbisai0security
May 9, 2026
medium8 min

Shell Script JSON Injection: When printf Becomes a Security Risk

A medium-severity vulnerability was discovered and patched in `scripts/openai_compat_report.sh`, where shell-based JSON construction using `printf` and variable interpolation left API payloads open to injection attacks. Without proper escaping of special characters, attacker-controlled input could malform JSON or silently alter API request semantics. This post breaks down how the vulnerability works, how it was fixed, and what every developer should know about safe JSON construction in shell scr

#security#shell-scripting#json-injection+5 more
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orbisai0security
May 9, 2026
critical8 min

Command Injection via shell=True: How One Flag Opens the Door to OS Takeover

A critical command injection vulnerability (CWE-78) was discovered and patched in the skill-creator pipeline, where Python scripts passed unsanitized user input directly to subprocess calls with `shell=True`, allowing attackers to execute arbitrary operating system commands. This fix closes a dangerous attack vector that could have enabled full system compromise, data exfiltration, and lateral movement within affected environments. Understanding how this vulnerability works — and how to prevent

#security#command-injection#python+4 more
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orbisai0security
May 9, 2026
medium8 min

Silent Data Destruction: The Hidden Danger in Upload Price Tier Logic

A medium-severity vulnerability in Fastlane's `deliver` tool revealed how a subtle semantic distinction between `nil` and an empty array could silently remove an app from sale in every App Store territory worldwide — with no warning, no confirmation, and a misleading success message to cover its tracks. This post breaks down how the bug worked, why it matters, and what developers can learn about defensive coding with destructive operations.

#security#ruby#fastlane+5 more
O
orbisai0security
May 9, 2026
critical7 min

Heap Buffer Overflow in MeltedForge Array Insert: Critical Fix

A critical heap buffer overflow vulnerability was discovered and patched in MeltedForge's core array implementation, where the `mfarray` insert operation performed `memmove` and `memcpy` without validating index bounds or available capacity. Left unpatched, this flaw could allow attackers to corrupt heap metadata and adjacent data structures, potentially leading to arbitrary code execution. The fix introduces proper bounds checking before any memory operations are performed.

#c#memory-safety#heap-overflow+4 more
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orbisai0security
May 9, 2026
high9 min

Use-After-Free in Windows ICMP Processing: A Race to Heap Corruption

A critical use-after-free vulnerability was discovered and patched in the multi-threaded ICMP processing path of a Windows/Cygwin network probing library, where freed memory pointers were not nullified, creating a dangerous race condition between concurrent threads. Left unpatched, this flaw could allow attackers to corrupt heap metadata, potentially leading to arbitrary code execution or denial of service. The fix ensures that dangling pointers are eliminated immediately after memory is freed,

#use-after-free#memory-safety#race-condition+7 more
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orbisai0security
May 9, 2026
critical5 min

Critical Buffer Overflow in Restore Utility: How Unbounded strcpy() Leads to Code Execution

A critical buffer overflow vulnerability was discovered and fixed in the system restore utility where unbounded strcpy() calls allowed attacker-controlled data to overflow fixed-size buffers. This classic C programming mistake could enable arbitrary code execution through crafted tape archives, highlighting why secure string handling remains essential in 2024.

#security#buffer-overflow#c-programming+4 more
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orbisai0security
May 8, 2026
critical8 min

Critical Buffer Overflow in SCRAM-SHA-256: How Unchecked memcpy Calls Put Your Database Proxy at Risk

A critical buffer overflow vulnerability was discovered and patched in Odyssey's SCRAM-SHA-256 authentication implementation, where six unchecked `memcpy` calls allowed unauthenticated attackers to corrupt heap memory by sending crafted oversized fields during authentication. This type of vulnerability is especially dangerous because it requires no credentials to exploit — any client initiating a connection could trigger it. The fix enforces proper length validation before every memory copy oper

#buffer-overflow#c-security#authentication+4 more
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orbisai0security
May 8, 2026
critical9 min

Critical Buffer Overflow in ShadowsockR: How memcpy Became a Security Nightmare

A critical buffer overflow vulnerability was discovered and patched in the ShadowsockR proxy server, where attacker-controlled network packet data was used directly as the byte count in memory copy operations without bounds checking. This class of vulnerability allows remote attackers to corrupt server memory, potentially enabling arbitrary code execution or denial of service. The fix adds proper bounds validation before any memory copy operation involving network-supplied length values.

#buffer-overflow#c-security#network-security+4 more
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orbisai0security
May 8, 2026
critical8 min

LDAP Injection in Apache Airflow: How a Missing Escape Nearly Opened the Gates

A critical LDAP injection vulnerability in Apache Airflow's Flask-AppBuilder security manager allowed attackers to bypass authentication and gain unauthorized access by crafting malicious usernames. The flaw stemmed from unsanitized user input being directly interpolated into LDAP filter strings — a classic but devastating mistake. This post breaks down how the attack works, what was fixed, and how you can prevent similar issues in your own code.

#ldap-injection#authentication-bypass#apache-airflow+4 more
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orbisai0security
May 8, 2026
critical9 min

Critical RCE in Handlebars.js: How CVE-2026-33937 Was Fixed

A critical Remote Code Execution vulnerability (CVE-2026-33937) was discovered in Handlebars.js that allows attackers to execute arbitrary code by crafting malicious Abstract Syntax Tree objects passed to the `compile()` function. This post breaks down how the vulnerability works, why it's dangerous, and how upgrading to Handlebars 4.7.9 closes the attack vector.

#security#rce#javascript+4 more
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orbisai0security
May 8, 2026
critical8 min

Critical UAC Pipe Hijacking: When rand() Opens the Door to SYSTEM

A critical vulnerability in Tabby's UAC component allowed local attackers to predict Windows named pipe names generated with a weak pseudo-random number generator, enabling them to hijack privileged communication channels before the elevated process could claim them. This pipe squatting attack could grant unprivileged users the ability to inject commands that execute with Administrator or SYSTEM privileges. The fix removes the unsafe exec() pattern and replaces the predictable pipe naming scheme

#security#windows#privilege-escalation+4 more
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orbisai0security
May 8, 2026