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Medium · 4.7 CVE-2026-41244 EUVD-2026-25610GHSA-wqq3-wfmp-v85g

Mojic: Observable Timing Discrepancy in HMAC Verification

Published Apr 24, 2026 · Updated Apr 24, 2026 · Assigned by GitHub_M

Description

Mojic is a CLI tool to transform readable C code into an unrecognizable chaotic stream of emojis. Prior to 2.1.4, the CipherEngine uses a standard equality operator (!==) to verify the HMAC-SHA256 integrity seal during the decryption phase. This creates an Observable Timing Discrepancy (CWE-208), allowing a potential attacker to bypass the file integrity check via a timing attack. This vulnerability is fixed in 2.1.4.

Affected products

VendorProductAffectedFixed
notamitgamer mojic < 2.1.4 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm mojic < 2.1.4 2.1.4 GHSA-wqq3-wfmp-v85g

References