This blog details research and analysis of an active campaign that exploits a critical unauthenticated remote code execution (RCE) vulnerability, CVE-2025-3248, that has been identified in Langflow versions prior to 1.3.0. Langflow is a Python-powered visual framework for building AI applications with over 70,000 GitHub stars, and its versions prior to 1.3.0 contains a flaw in its code validation mechanism that permits arbitrary code execution.
Unauthenticated attackers can exploit this vulnerability by crafting malicious POST requests to the /api/v1/validate/code endpoint. The malicious payload in our investigation was found embedded within argument defaults or decorators of a Python function definition. Since Langflow does not enforce input validation or sandboxing, these payloads are compiled and executed within the server’s context, leading to RCE.
Read more…
Source: Trend Micro
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- Retro tech leaves NHS open to cyber-attacks, say researchers
August 20, 2018
Hackers could gain access to NHS networks by exploiting vulnerabilities in fax machines, security researchers have suggested. Staff at Check Point Software discovered exploits in widely-used fax machines that enable hackers to spread malware through a malicious image file. Malware can be coded into the image file which, when decoded by the fax machine and uploaded to its ...
- Philips Vulnerability Exposes Sensitive Cardiac Patient Information
August 17, 2018
The unpatched flaw would allow a bad actor to execute information-exfiltrating malware, backdoors, ransomware or any other kind of bad code he or she chose. A vulnerability in the Philips IntelliSpace Cardiovascular (ISCV) line of medical data management products would allow privilege escalation and arbitrary code execution – opening the door for an attacker to siphon ...
- Microsoft Releases Patches for 60 Flaws – Two Under Active Attack
August 14, 2018
Get your update caps on. Just a few minutes ago Microsoft released its latest monthly Patch Tuesday update for August 2018, patching a total of 60 vulnerabilities, of which 19 are rated as critical. The updates patch flaws in Microsoft Windows, Edge Browser, Internet Explorer, Office, ChakraCore, .NET Framework, Exchange Server, Microsoft SQL Server and Visual Studio. Two ...
- Researchers Disclose New Foreshadow (L1TF) Vulnerabilities Affecting Intel CPUs
August 14, 2018
Academics and private sector researchers have revealed details today about three new vulnerabilities affecting Intel CPUs. All three are Spectre-class attacks that take advantage of a CPU design feature named speculative execution —a feature found in all modern CPUs that has the role of improving performance by computing operations in advance and later discarding unneeded data. These flaws target ...
- US voting systems: Full of holes, loaded with pop music, and ‘hacked’ by an 11-year-old
August 13, 2018
DEF CON Hackers of all ages have been investigating America’s voting machine tech, and the results weren’t great. For instance, one 11-year-old apparently managed to hack and alter a simulated Secretary of State election results webpage in 10 minutes. The Vote Hacking Village, one of the most packed-out locations at this year’s DEF CON hacking conference in Las ...
- ex-NSA Hacker Discloses macOS High Sierra Zero-Day Vulnerability
August 13, 2018
Your Mac computer running the Apple’s latest High Sierra operating system can be hacked by tweaking just two lines of code, a researcher demonstrated at the Def Con security conference on Sunday. Patrick Wardle, an ex-NSA hacker and now Chief Research Officer of Digita Security, uncovered a critical zero-day vulnerability in the macOS operating system that ...