CVE-2026-27452

MEDIUM

5.3

Description

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/21/2026

Last Modified3/3/2026

Sourcenvd

Honeypot Sightings0

Affected Products

jonathanwilbur:asn1-ts

Weaknesses (CWE)

CWE-200

References

https://github.com/JonathanWilbur/asn1-ts/security/advisories/GHSA-h5rw-vxjr-8q79(security-advisories@github.com)

IOC Correlations

No correlations recorded

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