#dos

A Denial of Service (DoS) vulnerability has been identified in the KnowledgeBaseWebReader class of the run-llama/llama_index project, affecting version ~ latest(v0.12.15). The vulnerability arises due to inappropriate secure coding measures, specifically the lack of proper implementation of the max_depth parameter in the get_article_urls function. This allows an attacker to exhaust Python's recursion limit through repeated function calls, leading to resource consumption and ultimately crashing the Python process.

## Summary `Rack::QueryParser` parses query strings and `application/x-www-form-urlencoded` bodies into Ruby data structures without imposing any limit on the number of parameters, allowing attackers to send requests with extremely large numbers of parameters. ## Details The vulnerability arises because `Rack::QueryParser` iterates over each `&`-separated key-value pair and adds it to a Hash without enforcing an upper bound on the total number of parameters. This allows an attacker to send a single request containing hundreds of thousands (or more) of parameters, which consumes excessive memory and CPU during parsing. ## Impact An attacker can trigger denial of service by sending specifically crafted HTTP requests, which can cause memory exhaustion or pin CPU resources, stalling or crashing the Rack server. This results in full service disruption until the affected worker is restarted. ## Mitigation - Update to a version of Rack that limits the number of parameters parsed, or - ...

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 8.2 ATTENTION: Exploitable remotely/low attack complexity Vendor: Hitachi Energy Equipment: RTU500 series Vulnerabilities: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), Improper Validation of Specified Index, Position, or Offset in Input 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to execute cross-site scripting or trigger a denial-of-service condition on the affected device. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Hitachi Energy reports the following products are affected: RTU500 series: Versions 12.0.1 to 12.0.14 RTU500 series: Versions 12.2.1 to 12.2.11 RTU500 series: Versions 12.4.1 to 12.4.11 RTU500 series: Versions 12.6.1 to 12.6.9 RTU500 series: Versions 12.7.1 to 12.7.6 RTU500 series: Versions 13.2.1 to 13.2.6 RTU500 series: Versions 13.4.1 to 13.4.3 3.2 VULNERABILITY OVERVIEW 3.2.1 Improper Neutralization of Input During Web Page Generation ('Cross-...

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 8.2 ATTENTION: Exploitable remotely Vendor: Mitsubishi Electric Equipment: CC-Link IE TSN Remote I/O module, CC-Link IE TSN Analog-Digital Converter module, CC-Link IE TSN Digital-Analog Converter module, CC-Link IE TSN FPGA module, CC-Link IE TSN Remote Station Communication LSI CP620 with GbE-PHY Vulnerability: Improper Validation of Specified Quantity in Input 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition on the affected products. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Mitsubishi Electric CC-Link IE TSN, a network controller, are affected: CC-Link IE TSN Remote I/O module NZ2GN2S1-32D/32T/32TE/32DT/32DTE: Versions 09 and prior CC-Link IE TSN Remote I/O module NZ2GN2B1-32D/32T/32TE/32DT/32DTE: Versions 09 and prior CC-Link IE TSN Remote I/O module NZ2GNCF1-32D/32T: Versions 09 and prior CC-Link IE TSN Remote I/O module NZ2GNCE3-32D/32D...

An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags().

A business logic vulnerability in Easy Appointments v1.5.1 allows attackers to cause a Denial of Service (DoS) via unspecified vectors.

Europol has announced the takedown of distributed denial of service (DDoS)-for-hire services that were used to launch thousands of cyber-attacks across the world. In connection with the operation, Polish authorities have arrested four individuals and the United States has seized nine domains that are associated with the now-defunct platforms. "The suspects are believed to be behind six separate

Polish authorities arrest 4 behind major DDoS-for-hire sites used in global attacks. Europol, US, Germany, and Dutch forces…

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ. During unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections. This issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected. Users are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue. Existing users may implement mutual TLS to mitigate the risk on affected brokers.

Threat actors have been observed actively exploiting security flaws in GeoVision end-of-life (EoL) Internet of Things (IoT) devices to corral them into a Mirai botnet for conducting distributed denial-of-service (DDoS) attacks. The activity, first observed by the Akamai Security Intelligence and Response Team (SIRT) in early April 2025, involves the exploitation of two operating system command