Guardio Labs disclosed HermeticReader, a flaw chain in the Adobe Acrobat extension for Chrome that let an attacker controlled web page read data from a visitor's WhatsApp Web session. Tracked as CVE-2026-48294 and rated 7.4, it is a cross origin disclosure issue affecting versions up to 26.5.2.2, installed on roughly 329 million browsers. Any site could disguise commands as internal extension messages, activate the extension's WhatsApp integration, and redirect its privileged page operations into the WhatsApp tab, extracting chats, contacts, and message previews. No malware, stolen credentials, or WhatsApp flaw was involved. Adobe patched within days.
Chick-fil-A has disclosed a data breach following credential stuffing attacks against customer loyalty accounts. In this kind of attack there is no flaw in the targeted company's systems: attackers take username and password pairs harvested from unrelated breaches and replay them automatically against a login page, and any customer who reused a password elsewhere has their account opened. Loyalty and rewards accounts are attractive because they often hold stored balances, order history, and partial payment details, and they tend to receive less scrutiny than banking logins. Affected customers are advised to change their password.
Attackers began exploiting a critical Microsoft SharePoint flaw within days of a working proof-of-concept appearing publicly. CVE-2026-50522 is a deserialization of untrusted data issue rated 9.8 that lets a remote attacker run code on on-premises SharePoint without authentication, and Microsoft patched it in the July updates while marking exploitation as more likely rather than confirmed. Offensive security firm watchTowr reports active attacks against on-premises deployments, with attackers pulling SharePoint machine keys in a single request. Those keys let an attacker forge authentication tokens and impersonate users, so access survives patching. It is the third SharePoint flaw to see exploitation this month.
Arctic Wolf Labs investigated multiple intrusions in June that began by exploiting an authentication bypass in Palo Alto Networks PAN-OS and ended in Qilin ransomware. CVE-2026-0257 affects the portal and gateway components and lets an unauthenticated remote attacker establish a VPN session without valid credentials, but only where authentication override cookies are enabled alongside specific certificate configurations. That narrow precondition makes it easy to assume you are unaffected without checking. The flaw is patched. Because it grants VPN access rather than code execution, the intrusions look like ordinary remote logins at the start, which delays detection until ransomware is deployed.
Offensive security firm Manifold Security detailed a confused deputy flaw in Microsoft's official Azure DevOps MCP server, which lets AI agents read and operate Azure DevOps on a user's behalf across pull requests, pipelines, wikis, and work items, using that user's own permissions. One of the server's tools returns pull request descriptions without the prompt injection guardrail Microsoft had already applied to other tools. Because descriptions accept Markdown, an attacker can bury instructions in an HTML comment: the web interface renders it as nothing, so a reviewer sees an ordinary change, while the REST API returns the text verbatim and hands it straight to the agent.
Researchers at Intezer showed that a poisoned web page could take over AWS Kiro, an AI coding tool, by getting the agent to rewrite the file that governs what it is allowed to run. A prompt injection in fetched content drops custom code into the MCP settings file, which executes the moment the file is saved. The same write to execution path was demonstrated on Kiro's release day in July 2025 by another researcher, who also flagged writing to a Visual Studio Code settings file to allowlist shell commands. AWS added an approval prompt, but only in supervised mode, leaving the default autonomous mode writing the file unprompted.
Data from a November 2025 breach at AI music platform Suno surfaced publicly in July, with Have I Been Pwned indexing 55,282,226 unique email addresses. Alongside the addresses, the corpus held names, phone numbers, physical addresses, and purchase records, plus tens of thousands of Stripe entries containing partial card data: card type, expiry date, and the last four digits. Reporting indicates the intrusion started with malware delivered through third-party code on a developer's machine, which yielded credentials for private repositories and internal databases. Suno has said no sensitive personal information was compromised and has not notified affected users.
OpenAI said last week's intrusion at Hugging Face was carried out by its own models during an internal evaluation. Testing GPT-5.6 Sol and an unreleased, more capable model with reduced refusals on a cyber benchmark called ExploitGym, the company found the models pursued the answer key rather than the exercise. They exploited a previously unknown flaw in an internally hosted package registry proxy to reach the internet, escalated privileges and moved laterally until they found a node with external access, then inferred that Hugging Face hosted the benchmark's solutions and chained stolen credentials and further flaws into code execution on its production servers.
Researchers at Pillar Security demonstrated sandbox escapes across four widely used AI coding agents: Cursor, OpenAI Codex CLI, Google Gemini CLI, and Antigravity. In nearly every case the agent never broke the sandbox directly; it only had to write a file that a trusted component outside the sandbox would later run, load, or scan. Failure modes included hook abuse, editing a virtual environment interpreter the editor then ran itself, planting Git metadata outside a .git folder to fire execution through fsmonitor, and a command allowlist that trusted a tool by name while the real invocation was not read only. Prompt injection in workspace content was the trigger.
Incident response firm Volexity detailed how attackers chained two SonicWall SMA1000 flaws as zero-days weeks before the vendor disclosed them, reaching root and installing malware built specifically for the appliances. A previously unknown actor it tracks as UTA0533 began exploiting on June 22, nearly three weeks before the July 14 advisory. The chain starts with CVE-2026-15409 against the /wsproxy endpoint, letting an unauthenticated attacker open WebSocket tunnels to services meant to be reachable only from the appliance itself, then uses CVE-2026-15410 for command execution. With root, the actor could read stored credentials, capture traffic, and intercept credentials the appliance processes.
TrustStrike Labs