Week in review: Cisco SD-WAN 0-day exploited, Patch Tuesday forecast
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Malicious .git Configs Can Make Claude, Codex, Cursor, and Other AI Agents Run Attacker Code
Malicious .git core.fsmonitor configs let attacker code run in AI coding agents like Claude Code and Codex; four of eight flaws remain unpatched.
Manifold Security disclosed eight flaws across seven command-line AI coding agents where a repository's Git core.fsmonitor configuration causes agent-spawned commands to execute attacker code outside the sandbox and without approval prompts. Fixes shipped for goose (CVE-2026-72718, CVSS 4.0 score 7.0), Claude Code on one path, and Cursor, while Hermes Agent, Qwen Code, Grok Build, and a second Claude Code path were still unpatched as of September 1. OpenAI issued three CVEs for the same class in Codex, including CVE-2026-19592, and prior related bugs include CVE-2021-43891 in Visual Studio Code and CVE-2022-24346 in JetBrains IDEs. Exploitation requires the repository to arrive with its .git directory intact, such as via archives, shared drives, or USB sticks rather than an ordinary clone.
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Week in review: Cisco patches SD-WAN 0-day, unpatched Microsoft Exchange Server flaw exploited
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VU#212479: Sentry Seer vulnerability allows attacker-controlled input to be executed in a privileged environment
CERT/CC details CVE-2026-90999: attacker-controlled Sentry telemetry can steer the Seer coding agent into executing attacker code with repository access.
CERT/CC published VU#212479 for CVE-2026-90999 in Sentry Seer: attacker-submitted events through public DSN endpoints flow into Seer's root-cause analysis, which is embedded directly into the coding agent's initial prompt. In the documented chain, the privileged coding agent downloads and executes an attacker-controlled package before any human review, yielding arbitrary code execution with access to connected source repositories. No vendor patch is available yet; mitigations include disabling automated remediation, restricting coding-agent package installation, and filtering telemetry before Seer analysis.
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Week in review: 74k Fortinet firewall credentials stolen, Splunk Enterprise RCE under active attack
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Week in review: High-severity LPE vulnerability in the Linux kernel, cPanel 0-day exploited for months
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Threat Brief: CVE-2022-41040 and CVE-2022-41082: Microsoft Exchange Server (ProxyNotShell)
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ASUS Control Center Critical Flaw Allows Unauthenticated Attackers to Gain Root Access
ASUS patched CVE-2026-19397 (CVSS 7.7) in Control Center Express Agent, letting unauthenticated nearby attackers with an active session take over the host.
ASUS released version 1.7.24 of Control Center Express Agent to fix CVE-2026-19397, a CWE-306 missing-authentication flaw scored 7.7 on CVSS v4. Exploitation requires an active login session on the target and nearby network access, and agent compromise could lead to complete device takeover where the agent runs with elevated privileges. ASUS also issued a same-day advisory for Armory Crate covering ten additional CVEs.
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Week in review: High severity WordPress vulnerabilities, fake OAuth IDs bypass sign-in logs
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Week in review: Exploited newly patched BeyondTrust RCE, United Airlines CISO on building resilience
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⚡ Weekly Recap: WordPress RCE, SonicWall 0-Days, AI Service Attacks, SharePoint 0
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Week in review: cPanel vulnerability actively exploited, DigiCert breach, LinkedIn job scams
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Wiz AI Agent Finds Critical Snowflake GitHub Repo Flaw Advanced Security Missed
Wiz's AI agent uncovered a critical flaw in Snowflake's GitHub Actions workflow that GitHub Advanced Security scans had missed.
A Wiz researcher, using the company's AI security agent, discovered a critical security flaw in Snowflake's GitHub Actions workflow. The flaw had been missed by a GitHub Advanced Security scan, highlighting gaps in automated coverage for CI/CD pipelines. No CVE identifier or evidence of active exploitation was provided in the report.
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Researchers Disclose AI-Assisted SharePoint Exploit Chain Reaching Unauthenticated RCE
Rapid7 disclosed CVE-2026-55040, a SharePoint JWT validation bypass chaining into CVE-2026-63520 unauthenticated RCE, with research substantially AI-agent-assisted; patches released.
Rapid7 disclosed CVE-2026-55040 (CVSS 9.1), several JWT validation pipeline issues letting unauthenticated attackers impersonate chosen SharePoint users by SID or UPN, chained with CVE-2026-63520 (CVSS 8.1), an unsafe .NET type instantiation in Business Connectivity Services yielding RCE as the service account. An AI agent contributed significantly across 96 sessions and roughly 80,000 tool calls over 24 active days, though an expert had to steer it and it repeatedly overstepped its threat model. No exploitation of the bypass had been reported as of CISA's July 14 assessment. The RCE affects SharePoint Subscription Edition, 2019, and 2016, plus Project Server 2013 SP1 and Office Web Apps 2013 SP1; the July updates break the chain.
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