CVE-2026-33320 is a denial-of-service vulnerability affecting Dasel, a command-line tool and library for data structure manipulation, specifically versions 3.0.0 through 3.3.1. The flaw lies in Dasel's custom YAML reader, which can be exploited by a specially crafted YAML input to trigger extreme CPU and memory consumption, leading to resource exhaustion. Rated Medium with a CVSS score of 6.2, this vulnerability allows an attacker to cause a denial of service (availability impact) without requiring user interaction or elevated privileges, provided they can supply YAML for processing. There is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage regarding this CVE. A patch for the issue is available in Dasel version 3.3.2.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.0.0, < 3.3.2CPE matchmatch criteria | cpe:2.3:a:tomwright:dasel:*:*:*:*:*:go:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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