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-18017746
- published19 Jul 2026
- disclosed17 Jul 2026
- creditUnknown
Introduced: 17 Jul 2026
CVE-2026-57077 (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 via the newline_len process. An attacker can cause the process to read memory outside the intended buffer by submitting a specially crafted YAML document containing a block scalar at a document boundary, potentially leading to information disclosure or application crash.