CVE-2026-33532 is a stack overflow vulnerability in the `yaml` JavaScript library (versions 1.x prior to 1.10.3 and 2.x prior to 2.8.3) that occurs during YAML document parsing due to unbounded recursion. An attacker can trigger a `RangeError: Maximum call stack size exceeded` by supplying a specially crafted, deeply nested YAML input, causing a denial of service by crashing the Node.js process or failing requests. This vulnerability has a CVSS score of 4.3 (Medium) and is easily exploitable with a small payload, potentially bypassing typical YAML-specific error handling. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0.0, < 1.10.3CPE matchmatch criteria | cpe:2.3:a:eemeli:yaml:*:*:*:*:*:node.js:*:* | ||
>= 2.0.0, < 2.8.3CPE matchmatch criteria | cpe:2.3:a:eemeli:yaml:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.