day01-sessionreaper-lab

Day 1 — SessionReaper-style Vulnerable Lab Educational This is a tiny lab that simulates the core idea reported for CVE-2025-54236 “SessionReaper”: improper validation of nested JSON leading to dangerous code paths. This is not Magento/Adobe Commerce; it's a minimal educational replica to practic...

Detection-and-Mitigation-script-for-CVE-2021-42717

Detection-and-Mitigation-script-for-CVE-2021-42717 Detection and Mitigation script for CVE-2021-42717 - ModSecurity DoS Vulnerability in JSON Parsing ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in...

CVE-2026-61551

Icinga 2 , an open source monitoring system, is affected by a stack overflow in its JSON parsing paths prior to versions 2.14.9 , 2.15.4 , and 2.16.2 . The root cause is that nesting depth is not bounded, so deeply nested JSON objects exhaust the call stack. The vulnerable paths are reachable by ...

CVE-2026-61551 Icinga 2: Stack overflow via deeply nested JSON objects

Icinga 2 is an open source monitoring system. Prior to 2.14.9, 2.15.4, and 2.16.2, parsing deeply nested JSON can exhaust the call stack because nesting depth is not bounded. The affected JSON parsing paths are reachable by unauthenticated network clients through the Icinga 2 service on TCP port...

CVE-2026-61551

Icinga 2 is an open source monitoring system. Prior to 2.14.9, 2.15.4, and 2.16.2, parsing deeply nested JSON can exhaust the call stack because nesting depth is not bounded. The affected JSON parsing paths are reachable by unauthenticated network clients through the Icinga 2 service on TCP port...

CVE-2026-68914 Mojolicious pure-Perl Mojo::JSON decoder allows memory exhaustion via deeply nested data

Mojolicious is a real-time web framework for Perl. Prior to 9.47, the pure-Perl implementation of Mojo::JSON does not limit nesting depth when Cpanel::JSON::XS is unavailable or MOJONOJSONXS is enabled. An attacker who can supply untrusted JSON to decodejson, fromjson, or j can submit deeply nest...

CVE-2026-17086 ShortPixel Image Optimizer <= 6.5.5 - Authenticated (Author+) PHP Object Injection via Nested JSON Post Content

The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.5.5 via deserialization of untrusted input . This makes it possible for authenticated attackers, with author-level access and...

CVE-2026-93450 go-openapi/swag jsonutils before 0.27.1 Uncontrolled Recursion in Ordered JSON Marshal and Unmarshal

go-openapi/swag jsonutils before 0.27.1 contains a stack overflow vulnerability in ordered JSON parsing and serialization due to unbounded recursion with no depth limit. Remote unauthenticated attackers can submit deeply nested JSON documents to services accepting OpenAPI specifications, causing...

Important: Red Hat Security Advisory: goose bug fix and enhancement update

An update for goose is now available for Red Hat Enterprise Linux 9. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Security Fixes: goose: aws-smithy-json: Denial of Service via uncontrolled...

aws-smithy-json: aws-smithy-json: Denial of Service via uncontrolled recursion with deeply nested JSON

A flaw was found in aws-smithy-json. This vulnerability allows a remote, unauthenticated attacker to cause a denial of service DoS in smithy-rs generated servers. By sending a small HTTP request containing deeply nested JSON, the attacker can trigger uncontrolled recursion in the aws-smithy-json...

Important: Red Hat Security Advisory: goose bug fix and enhancement update

An update for goose is now available for Red Hat Enterprise Linux 10. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Security Fixes: goose: aws-smithy-json: Denial of Service via uncontrolled...

aws-smithy-json: aws-smithy-json: Denial of Service via uncontrolled recursion with deeply nested JSON

A flaw was found in aws-smithy-json. This vulnerability allows a remote, unauthenticated attacker to cause a denial of service DoS in smithy-rs generated servers. By sending a small HTTP request containing deeply nested JSON, the attacker can trigger uncontrolled recursion in the aws-smithy-json...

CVE-2026-71429

stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.5.0, the path filters pick, ignore, filter, and replace in src/core/filters/filter-base.js recompute the full path string from the nesting stack for every checkable token...

CVE-2026-71429

A flaw was found in stream-json. This vulnerability allows a remote attacker to cause a Denial of Service DoS by providing a specially crafted, deeply nested JSON document. The library's path filters, such as pick and ignore, inefficiently process these structures, leading to excessive resource...

GHSA-528H-PC64-C93X stream-json: pick/ignore/filter/replace filters are O(depth²) on nested input — small crafted JSON blocks the event loop for seconds→minutes (DoS)

Description The path filters pick, ignore, filter, and replace — the library's headline "surgical extraction" feature — recompute the full path string from the nesting stack on every checkable token. Because the stack length equals the current nesting depth, and a checkable token is emitted at...

NPM: stream-json: pick/ignore/filter/replace filters are O(depth²) on nested input — small crafted JSON blocks the event loop for seconds→minutes (DoS)

NPM: stream-json: pick/ignore/filter/replace filters are Odepth² on nested input — small crafted JSON blocks the event loop for seconds→minutes DoS vulnerability discovered by ? in WordPress Npm stream-json versions = 3.4.0...

CVE-2026-71429 stream-json: pick/ignore/filter/replace filters are O(depth²) on nested input — small crafted JSON blocks the event loop for seconds→minutes (DoS)

stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.5.0, the path filters pick, ignore, filter, and replace in src/core/filters/filter-base.js recompute the full path string from the nesting stack for every checkable token...

EUVD-2026-70733

stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.5.0, the path filters pick, ignore, filter, and replace in src/core/filters/filter-base.js recompute the full path string from the nesting stack for every checkable token...

CVE-2026-71429

stream-json , a micro-library for streaming JSON/JSONC processing, has a denial-of-service vulnerability in its path filters (pick, ignore, filter, replace) defined in src/core/filters/filter-base.js. Prior to 3.5.0 , these filters recompute the full path string from the nesting stack for every c...

CVE-2026-71429 stream-json: pick/ignore/filter/replace filters are O(depth²) on nested input — small crafted JSON blocks the event loop for seconds→minutes (DoS)

stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.5.0, the path filters pick, ignore, filter, and replace in src/core/filters/filter-base.js recompute the full path string from the nesting stack for every checkable token...