CVE-2026-33320
Dasel is a command-line tool and library for querying, modifying, and transforming data structures.
Published Mar 24, 2026 · updated Jun 17, 2026 · tomwright dasel
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 implementation, which manually resolves alias nodes by recursively following 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.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Mar 24, 2026 · NIST NVD
Detected
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 implementation, which manually resolves alias nodes by recursively following pointers witho
Jun 17, 2026 · NIST NVD
Updated
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 implementation, which manually resolves alias nodes by recursively following pointers witho
Affected
- cpe tomwright/daselversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33320
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33320
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 i
nvd.nist.gov