CVE-2020-1947

CVE-2020-1947 Apache ShardingSphere UI YAML Parsing Remote Code Execution Vulnerability Reproduction 0x01 Download shardingsphere binary package wget https://mirror-hk.koddos.net/apache/incubator/shardingsphere/4.0.0/apache-shardingsphere-incubating-4.0.0-sharding-ui-bin.tar.gz Extract root@kali...

snakeyaml_cve_poc

snakeyamlcvepoc SnakeYAML-CVE-2022-1471-POC build Either build the jar on your host with mvn clean compile assembly:single Or use docker to build an image with docker build -t snakeyaml . run Run the container with docker run --rm -p8080:8080 snakeyaml or the jar if you built on your host with ja...

loader-CVE-2020-14343

loader-CVE-2020-14343 Una aplicación web vulnerable a la deserialización insegura CVE-2020-14343 que conduce a la ejecución de comandos en el paquete PyYAML. Informe: https://github.com/TebbaaX/CTFs/blob/main/HackerNewsBdarija-CTF-2022/loadder/Loader.md...

Kubernetes API Server - YAML Parsing DoS (Billion Laughs)

The Kubernetes API server is vulnerable to a denial of service attack via YAML/JSON parsing. An attacker can send a specially crafted YAML/JSON payload that causes exponential memory consumption Billion Laughs attack, leading to API server crash. id: CVE-2019-11253 info: name: Kubernetes API Serv...

cve-2022-1471-jira-lab

CVE-2022-1471 — SnakeYAML RCE lab Jira / Automation for Jira context Offline, self-contained lab proving the mechanism behind CVE-2022-1471 SnakeYAML unsafe deserialization → RCE, CVSS 9.8, as used in the Jira / Jira Service Management finding against a host running 9.4.9 affected range...

docling-core-CVE-2026-24009

CVE-2026-24009 — docling-core Unsafe YAML Deserialization PoC + Notes This repo contains a proof-of-concept PoC and a simple scanner demonstrating CVE-2026-24009 , where docling-core can enable code execution when loading attacker-controlled YAML under specific dependency conditions. TL;DR Impact...

js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing

A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a...

Astra Linux – Vulnerability in snakeyaml

Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks DOS. If the parser is running on user-supplied input, an attacker may provide content that causes the parser to crash due to a stack overflow...

js-yaml: js-yaml: Denial of Service via crafted YAML documents

A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial o...

commons-configuration: Apache Commons Configuration: Denial of Service via uncontrolled recursion with crafted YAML input

A flaw was found in Apache Commons Configuration. When processing an untrusted configuration file, a remote attacker could provide specially crafted YAML input with cycles. This could lead to an uncontrolled recursion, causing a StackOverflowError and resulting in a Denial of Service DoS for the...

EUVD-2026-69712

js-yaml: maxTotalMergeKeys does not limit CPU use for empty merge sources...

js-yaml: maxTotalMergeKeys does not limit CPU use for empty merge sources

Summary maxTotalMergeKeys does not count empty mappings. An attacker can repeatedly merge a large sequence of them and consume significant CPU without reaching the configured limit. Example yaml arr: &arr , , , ... N empty mappings targets: - : arr repeated K times For every target, the loader...

SUSE CVE-2026-84375

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 until 3.15.2, 4.3.2, and 5.4.1, maxTotalMergeKeys in lib/js-yaml/loader.js and lib/loader.js does not count empty mapping sources while processing the merge key . An attacker can alias a large sequence of empty mappings into many merge...

js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing

A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a...

js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing

A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a...

js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing

A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a...

js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing

A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a...

CVE-2026-84375

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 until 3.15.2, 4.3.2, and 5.4.1, maxTotalMergeKeys in lib/js-yaml/loader.js and lib/loader.js does not count empty mapping sources while processing the merge key . An attacker can alias a large sequence of empty mappings into many merge...

CVE-2026-84375

js-yaml , a widely used JavaScript YAML parser, is vulnerable to a CPU exhaustion issue in its merge-key (<

PT-2026-84523

Name of the Vulnerable Software and Affected Versions js-yaml versions 3.0.0 through 3.15.1 js-yaml versions prior to 4.3.2 Description An issue exists where maxTotalMergeKeys in lib/js-yaml/loader.js and lib/loader.js fails to count empty mapping sources when processing the merge key . This allo...