Security Bulletin: Vulnerability pyopenssl, jackson-core, pyasn, log4j-core, handlebars, twisted, bcpkix-jdk18on, Mako, httpd, apache2-build, wheel, click, moment-timezone-with-data, urllib, pip July 2026

Summary pyopenssl-25.3.0-py3CVE-2026-27448, CVE-2026-27459, jackson-core-2.15.2 PSIRT-WS-2026-0003, pyasn1-0.6.2-py3 CVE-2026-30922 , log4j-core-2.25.3CVE-2026-34479,CVE-2026-34480,CVE-2026-34477, CVE-2026-34478 , handlebars-4.7.8CVE-2026-33937, CVE-2026-33938, CVE-2026 , twisted-25.5.0-py3...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the mapDecoder.Decode and mapDecoderUnmarshaler.Decode methods in codecmap.go, which use the attacker-controlled map block element count both to pre-size the destination map and as...

GO-2026-5048 Denial of service via unbounded map allocations in github.com/iskorotkov/avro/v2 and github.com/hamba/avro/v2

The Avro map decoder accepts attacker-controlled block-element counts from the wire format and grows the destination map without enforcing an upper bound. A producer can declare an arbitrarily large map in one block, or chunked across many sub-limit blocks and exhaust process memory until the OOM...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the mapDecoder.Decode and mapDecoderUnmarshaler.Decode methods in codecmap.go, which use the attacker-controlled map block element count both to pre-size the destination map and as...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the mapDecoder.Decode and mapDecoderUnmarshaler.Decode methods in codecmap.go, which use the attacker-controlled map block element count both to pre-size the destination map and as...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the mapDecoder.Decode and mapDecoderUnmarshaler.Decode methods in codecmap.go, which use the attacker-controlled map block element count both to pre-size the destination map and as...

Public Exploit Released for Patched vBulletin Pre-Auth Code Execution Flaw

Public exploit details released on July 27 show how an unauthenticated request can reach PHP's eval function inside vBulletin and execute code on an unpatched forum server. The attack requires no account, administrative access, or interaction from another user. SSD Secure Disclosure lists vBullet...

mitos v1.43.0

Mitos Isolated, forkable computers for your AI agents. Millisecond microVM sandbox forking on Kubernetes: fork a running VM into parallel attempts and restore from memory in tens of milliseconds. Quickstart . Documentation . Features . Comparison . Contributing . Community What is Mitos Mitos giv...

Security Bulletin: Multiple vulnerabilities in IBM MQ Agent images

Summary Multiple vulnerabilities were addressed in IBM MQ Agent images Vulnerability Details CVEID:CVE-2025-13151 DESCRIPTION: Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a buffer overflow in asn1expendoctetstring...

Security Bulletin: Multiple vulnerabilities affect IBM Db2® on Cloud Pak for Data, and Db2 Warehouse on Cloud Pak for Data.

Summary IBM has released the below fix for IBM Db2® on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data in response to multiple vulnerabilities found in multiple components. This bulletin identifies the steps to take to address the vulnerabilities. Vulnerability Details...

xss-guide

XSS Cross-Site Scripting Attack Technical Guide: From Principl...

CVE-2026-13400

Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply...

CVE-2026-64515

A flaw was found in the Linux kernel's mac80211 Wi-Fi subsystem. This vulnerability arises from incorrect handling of Multi-Link Element MLE defragmentation. When a reconf or EPCS Enhanced Power Save MLE is present in a non-transmitted profile, the defragmentation routine uses an incorrect pointe...

CVE-2026-64442

A flaw was found in the Linux kernel's rtl8723bs Wi-Fi driver. Insufficient boundary checks in the information element IE parsing loops within the issueassocreq and joincmdhdl functions allow a remote attacker to cause an out-of-bounds read. By sending specially crafted, truncated IE data from a...

Security Bulletin: IBM Sterling External Authentication Server is vulnerable to multiple issues

Summary Multiple vulnerabilities affect IBM Sterling External Authentication Server and are addressed in the latest release and ifix Vulnerability Details CVEID:CVE-2025-62718 DESCRIPTION: Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not...

CVE-2026-13400

Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply...

CVE-2026-13400 Simply Schedule Appointments < 1.6.12.4 - Unauthenticated Stored XSS via Booking Customer Information

Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply...

CVE-2026-13400 Simply Schedule Appointments < 1.6.12.4 - Unauthenticated Stored XSS via Booking Customer Information

Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply...

CVE-2026-13400

CVE-2026-13400 affects the WordPress plugin Simply Schedule Appointments (all versions up to 1.6.12.2). The root cause is a sanitization-ordering defect: rendered notification content is decoded back into live HTML after passing through the plugin before 1.6.12.4’s wp_kses_post() filter, allowing...

EUVD-2026-49072

Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply...