Out-of-bounds Read Affecting cpan-authors/YAML-Syck package, versions [,1.47)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-CPANAUTHORSYAMLSYCK-18017747
- published19 Jul 2026
- disclosed16 Jul 2026
- creditUnknown
Introduced: 16 Jul 2026
CVE-2026-57075 (opens in a new tab)How to fix?
Upgrade cpan-authors/YAML-Syck to version 1.47 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the syck_base64dec function when processing YAML documents containing !!binary scalars with high-bit bytes. An attacker can access sensitive information by supplying a specially crafted YAML file that triggers an out-of-bounds read during base64 decoding.