03/18/2026-03/25/2026 CVE-2025-29927 Exploited in the Wild, Critical NetScaler Flaw, Firefox 149 Patches Three Critical Memory Corruption Flaws And More.

1. Next.js Middleware Authorization Bypass CVE-2025-29927 Exploited in the Wild

On March 21, 2025, researchers published an advisory for CVE-2025-29927, a vulnerability in Next.js middleware that allows authorization bypass through a specially crafted HTTP request containing the internal header x-middleware-subrequest. The flaw affects Next.js versions prior to 12.3.5, 13.5.9, 14.2.25, and 15.2.3, and carries a CVSS score of 9.1 with an EPSS exploitation probability of 92.56%. The x-middleware-subrequest header was originally designed as an internal mechanism to prevent infinite recursive loops. By spoofing this header, external attackers can bypass middleware entirely, skipping authentication, authorization cookie validation, and Content Security Policy enforcement. Vercel-hosted deployments are automatically protected, but self-hosted applications using the next start command with output: standalone are vulnerable. Malicious IP addresses were observed attempting to exploit this vulnerability in GreyNoise Visualizer shortly after disclosure. 

Action: Upgrade to Next.js 12.3.5, 13.5.9, 14.2.25, or 15.2.3. As a short-term mitigation for self-hosted deployments, configure your reverse proxy (Nginx, Cloudflare, AWS ELB) to strip the x-middleware-subrequest header from all inbound requests. Never rely solely on middleware for authentication — enforce access controls at the route or controller level as well.

2. Citrix Urges Patching Critical NetScaler Flaw Allowing Unauthenticated Data Leaks

Citrix has released patches for two vulnerabilities in NetScaler ADC and NetScaler Gateway, including a critical issue that could expose sensitive data.

CVE-2026-3055 (CVSS 9.3) involves insufficient input validation, leading to a memory overread. According to Rapid7, attackers could exploit this flaw remotely without authentication to access sensitive data in memory. However, it only affects systems configured as a SAML Identity Provider (SAML IdP), so default setups are not impacted.

CVE-2026-4368 (CVSS 7.7) is a race condition that may cause user session mix-ups. This requires the appliance to function as a gateway (e. g., SSL VPN or ICA Proxy) or an AAA server.

The flaws impact multiple NetScaler versions, and users should update immediately. Although no active exploitation is confirmed, past NetScaler bugs have been widely abused, making rapid patching essential.

3. Firefox 149 Patches Three Critical Memory Corruption Flaws Including a 9.8 CVE in the JavaScript Engine

CVE-2026-4715 is a critical vulnerability in the Graphics: Canvas2D component of Firefox and Firefox ESR, disclosed on March 24, 2026, with a CVSS score of 9.1. The flaw stems from uninitialized memory, meaning certain memory regions may be used without being properly cleared. This could allow attackers to leak sensitive data or potentially achieve arbitrary code execution.

The issue affects core graphics rendering, so it can likely be triggered through specially crafted web pages. Since the vulnerability is remotely exploitable without authentication, attackers would only need to trick users into visiting a malicious site. It impacts Firefox versions before 149 and Firefox ESR before 140.9. While no public proof-of-concept exists yet, exploitation is considered highly plausible. Users are strongly advised to update to Firefox 149 or Firefox ESR 140.9 or later to mitigate the risk and ensure protection.

4. Trivy Supply Chain Attack Triggers Self-Spreading CanisterWorm Across 47 npm Packages

The CanisterWorm campaign — attributed to the cloud-focused group TeamPCP — began March 20 when Socket researchers found a compromised npm publisher account injecting malicious code across packages. By March 21, the scope had expanded to 135 affected packages, with attackers leveraging existing trust relationships to have malicious code execute automatically during routine installs without requiring any changes from developers. A mutation discovered in @teale.io/eslint-config has proven especially dangerous: unlike the original deploy.js script that required the attacker to run manually with stolen tokens, the new variant incorporates self-propagation directly into index.js via a findNpmTokens() function that executes automatically, stealing npm tokens and using them to infect every package the token can reach. The campaign uses a decentralized Solana blockchain dead-drop for C2, making infrastructure takedowns ineffective. In parallel, two React Native packages — react-native-international-phone-number and react-native-country-select — were compromised on March 16 with obfuscated preinstall hooks targeting approximately 135,000 monthly downloads combined.

Action: Audit package-lock.json and yarn.lock for any packages from the CanisterWorm indicator list published by Socket. Treat any CI environment that ran npm install on affected packages as potentially compromised. Rotate npm tokens, GitHub tokens, and cloud credentials stored in those environments, and block outbound connections to known CanisterWorm C2 infratructure.

5. API Attack Rates Double Year-over-Year; Akamai Report Flags Behavior-Based Threats as New Normal

Akamai’s State of the Internet report published March 19, 2026, captures a sustained and worsening API threat environment. The average number of API attacks per enterprise per day reached 258 in 2025, more than double the 121 recorded in 2024, and most organizations reported at least one API-related security incident during the year. The shift is qualitative, not just quantitative: behavior-based threats — those that exploit how requests flow through workflows rather than relying on known signatures — now account for a growing share of API traffic, with attackers increasingly focused on degrading performance, driving up infrastructure costs, and exploiting AI-driven automation at scale.Wallarm’s concurrent 2026 API ThreatStats report adds structural context: in 2025, APIs accounted for 11,053 of 67,058 published security bulletins — 17% of all reported vulnerabilities — and 36% of all identified AI vulnerabilities also qualify as API vulnerabilities.Configuration and access control failures remain the most common root causes, dominated by security misconfiguration, broken authorization, and unsafe API consumption patterns.

Action: Add schema validation and strict object-level authorization checks to every API endpoint — not just your authentication layer. Instrument your API gateway to alert on anomalous request rates per endpoint, not just aggregate traffic. If your stack integrates AI tooling or MCP servers, audit those API surfaces explicitly, as they represent the fastest-growing overlap between AI and API attack surfaces.

03/11/2026-03/18/2026 Wing FTP Server Flaw, Python Repositories Compromised, Flaws in Linux AppArmor And More.

1. AI Flaws in Amazon Bedrock, LangSmith, and SGLang Enable Data Exfiltration and RCE

Cybersecurity researchers have uncovered a new data exfiltration method targeting AI code execution environments via DNS queries. BeyondTrust found that Amazon Bedrock AgentCore Code Interpreter allows outbound DNS requests even in sandbox mode, enabling attackers to bypass network isolation.This behavior can be abused to create command-and-control channels, execute commands, and exfiltrate sensitive data—especially if the system’s IAM role has excessive permissions. Attackers can send instructions through DNS records, retrieve payloads, and establish persistent access.

Although reported in 2025, Amazon considers this intended functionality and recommends using VPC mode and DNS firewalls for stronger isolation.
Separately, a flaw in LangSmith (CVE-2026-25750) allowed token theft and account takeover via malicious links, now patched. Meanwhile, critical vulnerabilities in SGLang could enable remote code execution through unsafe deserialization, highlighting growing security risks in AI infrastructure.

2. CISA Flags Wing FTP Server Flaw as Actively Exploited in Attacks

CISA has warned U.S. agencies to secure Wing FTP Server against an actively exploited vulnerability that could be used in remote code execution (RCE) attacks.
Tracked as CVE-2025-47813, the flaw allows low-privileged attackers to reveal the application’s installation path through error messages. While not critical alone, it can be chained with other vulnerabilities, including an RCE flaw (CVE-2025-47812) and a password disclosure bug.

These issues were patched in version 7.4.4, but attackers began exploiting them shortly after disclosure. Proof-of-concept code has also been released, increasing the risk.

CISA added the flaw to its Known Exploited Vulnerabilities catalog and gave federal agencies two weeks to patch. Although the directive targets government systems, all organizations are strongly urged to update immediately to prevent ongoing attacks.

3. Python Repositories Compromised in GlassWorm Aftermath

Threat actors are exploiting credentials stolen in the GlassWorm campaign to compromise GitHub accounts and inject malware into Python repositories. Discovered by StepSecurity, the attacks began around March 8 and target Django apps, ML projects, PyPI packages, and Streamlit dashboards, likely aiming to steal cryptocurrency and sensitive data.Using stolen credentials, attackers modify repositories by rebasing legitimate commits, inserting obfuscated malicious code, and force-pushing changes. This method, called ForceMemo, hides traces by keeping original commit messages and author dates intact.The malware avoids Russian-language systems and retrieves instructions from a Solana blockchain address, then downloads and executes encrypted payloads while maintaining persistence.

Hundreds of repositories have been affected. The campaign builds on GlassWorm, a malware strain first seen in 2025 that steals credentials and crypto assets. It has since evolved into a multi-platform threat, also targeting VS Code extensions and NPM packages using more stealthy delivery techniques.

4. Nine CrackArmor Flaws in Linux AppArmor Enable Root Escalation, Bypass Container Isolation

Cybersecurity researchers from Qualys have disclosed nine vulnerabilities in the Linux AppArmor module, collectively called CrackArmor. These flaws, present since 2017, allow unprivileged users to bypass protections, escalate privileges to root, and weaken container isolation. The issues stem from “confused deputy” vulnerabilities, where attackers manipulate trusted processes to perform malicious actions. By exploiting AppArmor profile handling, attackers can bypass namespace restrictions, execute arbitrary code, and even disable security controls. The flaws also enable denial-of-service attacks, kernel memory exposure, and techniques like KASLR bypass. In some cases, attackers could modify critical files (e. g., /etc/passwd) or gain full system control.

The vulnerabilities affect Linux kernels since version 4.11 across distributions like Ubuntu, Debian, and SUSE. With millions of systems impacted, immediate kernel patching is strongly recommended, as temporary mitigations are insufficient to fully address the risks.

5. CISA Adds n8n RCE Flaw to List of Known Exploited Vulnerabilities

CISA has added a critical remote code execution flaw in n8n to its Known Exploited Vulnerabilities catalog, requiring federal agencies to patch within two weeks. Tracked as CVE-2025-68613, the flaw was disclosed in December 2025 and allows authenticated attackers to execute arbitrary code with the same privileges as the n8n process. This could lead to full system compromise, unauthorized data access, and execution of system-level commands.The vulnerability affects versions from 0.211.0 up to patched releases (1.120.4, 1.121.1, 1.122.0) and received a CVSS score up to 9.9. Exploits show that workflow expressions can access the Node.js environment, enabling command execution via the UI or API. Over 24,000 instances remain exposed. Due to active exploitation risks, agencies must patch by March 25, 2026.

03/04/2026-03/11/2026 CISA Flags SolarWinds, Ivanti, and Workspace One Vulnerabilities, GhostClaw Poses As OpenClaw To Steal Sensitive Developer Data And More.

1. Five Malicious Rust Crates and AI Bot Exploit CI/CD Pipelines to Steal Developer Secrets

Cybersecurity researchers discovered five malicious Rust crates disguised as time-related utilities that secretly steal sensitive data from developers. The packages—chrono_anchor, dnp3times, time_calibrator, time_calibrators, and time-sync—were uploaded to the crates.io between late February and early March 2026. Although presented as tools to calibrate local time without Network Time Protocol, the crates actually search for .env files and send their contents to attacker-controlled servers. These files often store API keys, tokens, and other secrets, making them valuable targets. Four of the packages simply collect and transmit the data, while chrono_anchor hides the malicious logic using obfuscation to avoid detection. The stolen information is sent to a look-alike domain, timeapis[.]io. The crates have now been removed, but developers who installed them should assume their secrets were exposed, rotate credentials, and review CI/CD pipelines. The campaign highlights how even simple supply-chain attacks can cause serious damage inside developer environments.

2. CISA Flags SolarWinds, Ivanti, and Workspace One Vulnerabilities as Actively Exploited

CISA has added three vulnerabilities to its KEV Catalog after confirming active exploitation. The flaws affect Omnissa Workspace ONE UEM, SolarWinds Web Help Desk, and Ivanti Endpoint Manager. One vulnerability allows server-side request forgery that could expose sensitive data, while another enables attackers to execute commands on affected systems. The third flaw allows authentication bypass that may leak stored credentials. Security researchers report that attackers are already exploiting the SolarWinds Web Help Desk flaw to gain initial access, with activity linked to the Warlock ransomware group. CISA has ordered U.S. federal agencies to patch the SolarWinds vulnerability by March 12, 2026, and the remaining flaws by March 23, 2026 to reduce security risks.

3. GhostClaw Poses As OpenClaw To Steal Sensitive Developer Data

Security researchers discovered a malicious npm package posing as the OpenClaw Installer. Instead of installing a legitimate tool, it deploys a malware framework designed to steal developer secrets, browser data, crypto wallet files, and system credentials while installing a persistent remote access tool. The package appears harmless at first, but its real behavior is hidden in setup and postinstall scripts. During installation, it silently installs itself globally and launches a convincing fake installer in the terminal with progress bars and setup messages. Afterward, it displays a fake Keychain prompt requesting the user’s system password. If entered correctly, the malware gains access to protected data. The script then downloads an encrypted second-stage payload called GhostLoader, which acts as both an infostealer and a remote access trojan. It steals credentials, cloud profiles, and browser data, sends them to attacker servers, and maintains persistent system access.

4. OpenAI Rolls Out Codex Security Vulnerability Scanner

OpenAI has introduced a new AI-powered vulnerability scanner called Codex Security (previously Aardvark). Currently in research preview, the tool has been tested in private beta by companies such as Netgear. It is now available to ChatGPT Pro, Enterprise, Business, and Edu users with free access for one month.

Codex Security analyzes code repositories to understand system context and build a threat model based on trusted components, system roles, and potential exposures. It then searches for vulnerabilities, ranks them by real-world risk, and suggests patches.

During testing over 30 days, the tool scanned 1.2 million commits and detected nearly 800 critical vulnerabilities and more than 10,000 high-severity issues. Problems were found in major open-source projects including Chromium, OpenSSL, and PHP.

5. UNC6426 Exploits nx npm Supply-Chain Attack to Gain AWS Admin Access in 72 Hours

A threat actor known as UNC6426 breached a company’s cloud environment within 72 hours after exploiting a supply-chain attack involving the Nx npm package. The attack began when a developer’s GitHub token was stolen.

Using the token, the attacker accessed the victim’s cloud environment and abused a trust relationship between GitHub and Amazon Web Services through OpenID Connect. This allowed them to create a new administrator role and gain full cloud control.

The attackers then accessed Amazon S3 buckets to steal files and later destroyed parts of the production environment. The compromise was linked to a malicious script that installed a credential-stealing tool called QUIETVAULT, which collected tokens and sensitive data.

The incident highlights how supply-chain attacks targeting developer tools can quickly escalate into full cloud breaches if permissions are misconfigured.