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2 vulnerabilities by tomwright
CVE-2026-33320 (GCVE-0-2026-33320)
Vulnerability from nvd – Published: 2026-03-24 00:06 – Updated: 2026-03-26 12:24
VLAI
Title
Dasel has unbounded YAML alias expansion in dasel leads to CPU/memory denial of service
Summary
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.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/TomWright/dasel/security/advis… | x_refsource_CONFIRM |
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CVE-2026-33320 (GCVE-0-2026-33320)
Vulnerability from cvelistv5 – Published: 2026-03-24 00:06 – Updated: 2026-03-26 12:24
VLAI
Title
Dasel has unbounded YAML alias expansion in dasel leads to CPU/memory denial of service
Summary
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.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/TomWright/dasel/security/advis… | x_refsource_CONFIRM |
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