CVE-2026-41244

MEDIUM

Mojic: Observable Timing Discrepancy in HMAC Verification

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 4.7
EPSS 0.0011
EPSS Percentile 1.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-208
Status published
Products (2)
notamitgamer/mojic < 2.1.4
npm/mojic 0 - 2.1.4npm
Published Apr 24, 2026
Tracked Since Apr 24, 2026