Is CVE-2026-33320 actively exploited?

No active exploitation of CVE-2026-33320 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33320 be exploited remotely?

No. CVE-2026-33320 requires local access to exploit.

What is the CVSS score of CVE-2026-33320?

CVE-2026-33320 has a CVSS score of 6.2 (MEDIUM).

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MEDIUM

CVE-2026-33320

CWE-674Published: March 24, 2026· Updated: Mar 25, 2026

6.2

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official Description

Dasel is a command-line tool and library for querying, modifying, and transforming data structures. Starting in version 3.0.0 and prior to version 3.3.1, Dasel's YAML reader allows an attacker who can supply YAML for processing to trigger extreme CPU and memory consumption. The issue is in the library's own `UnmarshalYAML` implementation, which manually resolves alias nodes by recursively following `yaml.Node.Alias` pointers without any expansion budget, bypassing go-yaml v4's built-in alias expansion limit. Version 3.3.2 contains a patch for the issue.

NVD Source

Technical Analysis

CVE-2026-33320 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.2.