CVE-2026-27452 (GCVE-0-2026-27452)

Vulnerability from cvelistv5 – Published: 2026-02-21 06:50 – Updated: 2026-02-24 18:54
VLAI?
Title
ASN.1 TypeScript Library: Decoding an INTEGER could leak the underlying ArrayBuffer
Summary
ASN.1 TypeScript ESM library, including codecs for Basic Encoding Rules (BER) and Distinguished Encoding Rules (DER). In versions 11.0.5 and below, in some cases, decoding an INTEGER could leak the underlying ArrayBuffer. This issue is expected to be fixed in version 11.0.6.
Severity ?
9.2 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
JonathanWilbur asn1-ts Affected: <= 11.0.5
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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