PraisonAI Vulnerable to Remote Code Execution via YAML Deserialization in Agent Definition Loading

SummaryThe AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags such as !!js/function and !!js/undefined. This allows an attacker to craft a malicious YAML file that, when parsed, executes arbitrary JavaScript code. An attacker can...

SUSE CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

Linux Distros Unpatched Vulnerability : CVE-2026-53550

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key...

CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

UBUNTU-CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

CVE-2026-53550 js-yaml: Quadratic-complexity DoS in merge key handling via repeated aliases

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

CVE-2026-53550

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

CVE-2026-53550 js-yaml: Quadratic-complexity DoS in merge key handling via repeated aliases

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

CVE-2026-53550: Inefficient Algorithmic Complexity

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size an...

02.aula (1.0.0), 0xrtest (1.0.0) +10400 more potentially affected by CVE-2026-53550 via js-yaml (>=4.0.0, <=4.1.1)

js-yaml NPM version =4.0.0, =0.2.0, =0.0.3, =4.11.0, =0.0.1, =1.1.9, =0.1.23, =0.1.4, =6.1.5, =0.2.0, =0.14.0 and more Source cves: CVE-2026-53550 Source advisory: SNYK:JS-JSYAML-17342520...

Inefficient Algorithmic Complexity

Overview js-yaml is a human-friendly data serialization language. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the storeMappingPair function in loader.js when handling repeated aliases in merge sequences. An attacker can exhaust CPU resources and...

GHSA-H67P-54HQ-RP68 JS-YAML: Quadratic-complexity DoS in merge key handling via repeated aliases

Summary A crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size and can block a Node.js worker/event loop for seconds with a relative...

02.aula (1.0.0), 0xrtest (1.0.0) +10400 more potentially affected by CVE-2026-53550 via js-yaml (>=4.0.0, <=4.1.1)

js-yaml NPM version =4.0.0, =0.2.0, =0.0.3, =4.11.0, =0.0.1, =1.1.9, =0.1.23, =0.1.4, =6.1.5, =0.2.0, =0.14.0 and more Source cves: CVE-2026-53550 Source advisory: OSV:GHSA-H67P-54HQ-RP68...

JS-YAML: Quadratic-complexity DoS in merge key handling via repeated aliases

Summary A crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size and can block a Node.js worker/event loop for seconds with a relative...

02-infrastructure (1.0.0), 02vue_toast_demo (>=1.0.0, <=1.0.4) +21422 more potentially affected by CVE-2026-53550 via js-yaml (>=3.0.0, <=3.14.2)

js-yaml NPM version =3.0.0, =1.0.0, =1.0.4, =5.0.0, =1.0.3, =2.0.0, =0.0.1, =0.0.2 - 23g-base-css 1.0.0 and more Source cves: CVE-2026-53550 Source advisory: OSV:GHSA-H67P-54HQ-RP68...

PT-2026-49573

Name of the Vulnerable Software and Affected Versions js-yaml versions prior to 4.2.0 Description A crafted YAML document can trigger algorithmic CPU exhaustion during merge-key processing by repeating the same alias multiple times in a merge sequence. This results in quadratic parse-time behavio...

CVE-2026-53550

creationtimestamp| type| source ---|---|--- 2026-05-31 23:39:03+00:00| published-proof-of-concept| https://github.com/nodeca/js-yaml/security/advisories/GHSA-h67p-54hq-rp68...

js-yaml: js-yaml: Denial of Service via crafted YAML ordered-map document

A flaw was found in js-yaml, a JavaScript YAML YAML Ain't Markup Language parser. An attacker could exploit this by providing a specially crafted YAML ordered-map document. This could lead to excessive CPU consumption, resulting in a denial of service DoS for applications processing the malicious...