Last updated: September 29, 2026 at 8:42 AM UTC
All 891 Vulnerability 357 Breach 144 Threat 383 Defense 7
Tag: rce (65 articles)Clear

LangGraph flaw chain exposes self-hosted AI agents to code execution

Check Point has disclosed three now-patched flaws in LangGraph, the popular LangChain framework for building AI agents, that can be chained for remote code execution on self-hosted servers. The chain combines an SQL injection (CVE-2025-67644) with an unsafe msgpack deserialization bug (CVE-2026-28277): an attacker who can reach the agent's stored-state endpoint plants a malicious checkpoint that runs code when loaded. A compromised LangGraph server exposes everything the agent can touch, including model API keys, customer data, and internal network access. It is only exploitable in self-hosted deployments using the SQLite or Redis checkpointer; LangChain's managed LangSmith platform is not affected.

Check
Identify self-hosted LangGraph deployments using the SQLite or Redis checkpointer, check whether the get_state_history endpoint is exposed without authentication, and confirm the framework version against the patched releases.
Affected
Self-hosted LangGraph servers using the SQLite or Redis checkpointer with user-controlled filter input (CVE-2025-67644, CVE-2026-28277, CVE-2026-27022). Managed LangSmith deployments are not affected.
Fix
Upgrade LangGraph to the patched versions, require authentication on self-hosted servers, avoid long-lived static secrets, segment the network, and treat AI agents as privileged identities with least-privilege access.

Oracle issues emergency PeopleSoft fix as exploited zero-day drives breaches

The ShinyHunters data-theft wave against Oracle PeopleSoft, covered yesterday, now has a confirmed root cause: a zero-day. Oracle has issued an out-of-band emergency mitigation for CVE-2026-35273, a critical flaw (rated 9.8) in PeopleSoft PeopleTools that lets an unauthenticated attacker run code on the server over HTTP, with no login required. Google's Mandiant says the bug was exploited from May 27 to June 9, before any advisory existed, and notified more than 100 affected organizations, 68 percent of them universities. The exposed component is the Environment Management Hub. Affected versions are PeopleTools 8.61 and 8.62; a full patch is still pending.

Check
Determine whether PeopleSoft PeopleTools 8.61 or 8.62 is in use and whether the Environment Management Hub is reachable externally, then review logs for the published attacker IPs and credential-spray activity.
Affected
Oracle PeopleSoft Enterprise PeopleTools 8.61 and 8.62 with the Environment Management Hub exposed to untrusted networks (CVE-2026-35273); PeopleSoft Enterprise Applications customers may also be affected.
Fix
Apply Oracle's emergency mitigations from the June out-of-band alert immediately and restrict access to the Environment Management Hub, then watch for the full patch and assume compromise where exposed.

Critical Ivanti Sentry flaw now exploited within a day of disclosure

The critical Ivanti Sentry flaw covered yesterday is now under active attack, with researchers reporting compromised gateways within about 24 hours of the patch and public patch analysis. CVE-2026-10520, rated a perfect 10, is an OS command injection in an internal configuration API that accepts commands from anyone who can reach it over the internet, granting remote code execution as root with no login. A second flaw, CVE-2026-10523, lets attackers create their own admin accounts. With exploitation confirmed and detection tooling public, the time to patch has effectively run out for internet-exposed appliances. Ivanti released fixes earlier this week.

Check
Treat any unpatched, internet-facing Ivanti Sentry as potentially compromised: review appliances for rogue administrator accounts, unexpected root commands, and connections from unfamiliar IPs before and after patching.
Affected
Internet-exposed Ivanti Sentry (formerly MobileIron Sentry) 10.5.1, 10.6.1, 10.7.0 and earlier, now actively exploited via CVE-2026-10520 (root RCE) and CVE-2026-10523 (admin auth bypass).
Fix
Patch to R10.5.2, R10.6.2, or R10.7.1 immediately if not already done, then perform incident response: rebuild compromised appliances, remove rogue accounts, and rotate connected credentials and secrets.

Critical FortiSandbox flaw lets unauthenticated attackers run commands

Fortinet has patched a critical flaw in FortiSandbox, the appliance that detonates suspicious files and feeds malware verdicts to the rest of a Fortinet security deployment. The bug (CVE-2026-25089, rated 9.8) is an OS command injection in the web interface that lets a remote, unauthenticated attacker run arbitrary commands by sending crafted HTTP requests. Compromising a sandbox is especially dangerous because attackers can both pivot deeper into the network and blind the very system meant to catch malware. Fixed versions are FortiSandbox 5.0.6 and 4.4.9, with matching updates for the Cloud and PaaS editions.

Check
Identify FortiSandbox appliances and their version and whether the web interface is reachable from untrusted networks, and review HTTP and admin logs for unexpected command execution.
Affected
FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS web interfaces before the fixed releases (CVE-2026-25089), reachable by remote unauthenticated attackers over HTTP.
Fix
Upgrade FortiSandbox to 5.0.6 or 4.4.9 (and the matching Cloud and PaaS releases) now, and restrict management-interface access to trusted networks until patched.

Attackers exploit unpatched Langflow flaw for unauthenticated code execution

VulnCheck reports that attackers are actively exploiting an unpatched flaw in Langflow, a popular open-source platform for building AI applications. The bug (CVE-2026-5027, rated 8.8) is a path-traversal weakness: the file-upload endpoint does not clean the supplied filename, so an attacker can use directory-climbing sequences to write files anywhere on the server, a foothold that leads to remote code execution. Tenable, which found it, says the maintainers did not respond after three contact attempts in early 2026, and there is still no official fix. Early exploitation appears to be probing, with attackers writing harmless test files, but that usually precedes heavier attacks.

Check
Identify any internet-facing Langflow instances, confirm the version, and review the server filesystem and web logs for unexpected files written via the /api/v2/files upload endpoint.
Affected
Internet-exposed Langflow deployments where the file-upload endpoint is reachable (CVE-2026-5027). No vendor patch is available yet, and active exploitation is already under way.
Fix
Until a fix ships, take Langflow off the public internet or place it behind authentication and a WAF that blocks path-traversal payloads, and restrict the upload endpoint.

Critical Ivanti Sentry flaw gives unauthenticated attackers root

Ivanti has patched two critical flaws in Sentry, its mobile gateway appliance (formerly MobileIron Sentry) that sits in line between mobile devices and back-end systems like Exchange. The worst, CVE-2026-10520, rated a perfect 10, is an OS command injection in an internal configuration API that mistakenly accepts commands from anyone who can reach it over the internet, with no login, granting remote code execution as root. The second, CVE-2026-10523 (9.9), is an authentication bypass that lets attackers create their own admin accounts. No exploitation has been seen yet, but watchTowr has already published a patch analysis and a detection script, so the window is closing fast.

Check
Identify Ivanti Sentry appliances and their version, restrict who can reach the management and configuration endpoints, and run watchTowr's detection script to confirm whether instances are vulnerable.
Affected
Ivanti Sentry (formerly MobileIron Sentry) versions 10.5.1, 10.6.1, 10.7.0 and earlier, exposed to untrusted networks (CVE-2026-10520 root RCE; CVE-2026-10523 admin-account auth bypass).
Fix
Upgrade Ivanti Sentry to R10.5.2, R10.6.2, or R10.7.1 immediately, then review appliances for rogue administrator accounts and any signs of command execution before patching.

Six protobuf.js flaws let malicious schemas run code in Node.js apps

Researchers at Cyera have disclosed six vulnerabilities, collectively named Proto6, in protobuf.js, a JavaScript and TypeScript library for Google's Protocol Buffers data format that sees more than 50 million downloads a week. The flaws stem from the library trusting schema and metadata by default, so a single malicious schema or crafted payload can crash a service, inject code, or lead to remote code execution. Cyera demonstrated real attacks including poisoning CI/CD pipelines to leak build secrets and crashing WhatsApp automation bots. Because protobuf.js is embedded across cloud services, AI platforms, and build systems, the reach is broad. Fixed versions are 7.5.6 and 8.0.2.

Check
Inventory applications and pipelines that depend on protobuf.js directly or transitively, and identify any that deserialize Protobuf data or generate code from schemas supplied by untrusted sources.
Affected
Node.js applications, cloud client libraries, CI/CD pipelines, and messaging frameworks using protobuf.js before 7.5.6 or 8.0.2 (CVEs include CVE-2026-44289, CVE-2026-44295) that process untrusted schemas.
Fix
Upgrade protobuf.js to 7.5.6 or 8.0.2 and protobufjs-cli to 1.2.1 or 2.0.2, and treat incoming schemas and descriptors as untrusted input rather than safe data.

LiteLLM AI gateway flaw exploited for unauthenticated remote code execution

Attackers are actively exploiting a flaw in LiteLLM, a widely used open-source gateway that routes requests to AI models, and CISA has added it to its known-exploited-vulnerabilities list. The bug (CVE-2026-42271) lets any authenticated user run commands on the host through test endpoints that spawn whatever command is supplied in the request. Chained with a separate Host-header bypass in the Starlette web framework (CVE-2026-48710), it becomes unauthenticated remote code execution, giving full control of the server, credential theft, and a foothold in connected AI infrastructure. Horizon3.ai has published a proof-of-concept. It follows a LiteLLM SQL injection flaw exploited within 36 hours last month.

Check
Identify internet-facing LiteLLM proxy deployments and their version, check the Starlette version in use, and review logs of the /mcp-rest/test endpoints for unexpected command execution.
Affected
LiteLLM AI gateway and Python SDK (BerriAI) deployments exposing the vulnerable test endpoints (CVE-2026-42271), especially when paired with Starlette versions vulnerable to the Host-header bypass (CVE-2026-48710).
Fix
Upgrade LiteLLM and Starlette to the fixed releases immediately, restrict the affected endpoints to trusted networks, and rotate any credentials or API keys reachable from the LiteLLM host.

Veeam backup server flaw lets low-privilege domain users run code

Veeam has patched a critical flaw in Backup and Replication, one of the most widely deployed enterprise backup tools, that lets any authenticated low-privilege domain user run code remotely on the backup server. The bug (CVE-2026-44963, rated 9.4) only affects version 12 installations joined to an Active Directory domain; version 13, which uses a different architecture, is not affected, and workgroup setups are safe. No exploitation has been seen yet, but Veeam warns attackers often move quickly once patches reveal the flaw, and backup servers are a prime ransomware target because compromising them cripples recovery. The fix is build 12.3.2.4854.

Check
Identify Veeam Backup and Replication version 12 servers, determine which are joined to an Active Directory domain, and review the domain-user access granted to the backup console.
Affected
Domain-joined Veeam Backup and Replication 12.3.2.4465 and earlier version 12 builds (CVE-2026-44963). Version 13 and workgroup-only deployments are not affected.
Fix
Upgrade to Veeam Backup and Replication 12.3.2.4854 now. Where patching must wait, isolate backup servers from the domain network and tighten which domain users can reach the console.

Chained UniFi OS flaws give unauthenticated root on Ubiquiti gateways

Researchers at Bishop Fox have shown that three maximum-severity flaws Ubiquiti patched in May can be chained into a single attack that hands an unauthenticated attacker root access to UniFi OS Server with one crafted web request. Two flaws (CVE-2026-34908 and CVE-2026-34909) bypass the login gateway by abusing how the server reads encoded web addresses; the third (CVE-2026-34910) injects commands into the package-update feature, which runs with passwordless sudo, making escalation to root trivial. The flaws hit version 5.0.6 and earlier across widely used gear like UDM, UCG, and UNVR appliances. Bishop Fox released a free script to check for exposure.

Check
Inventory UniFi OS Server and gateway appliances (UDM, UCG, UNVR) for version 5.0.6 or earlier, and run Bishop Fox's detection script against the management interface to confirm exposure.
Affected
UniFi OS Server 5.0.6 and earlier on UDM, UDM-Pro, UCG, UNVR, and related Ubiquiti appliances; the chain (CVE-2026-34908/34909/34910, all CVSS 10.0) yields unauthenticated root.
Fix
Update to UniFi OS Server 5.0.8 (unifi-core 5.0.153) or later. Because patching does not undo prior compromise, rotate credentials and run incident response where exposure is suspected.