CVE-2026-41244
MEDIUMMojic: Observable Timing Discrepancy in HMAC Verification
Title source: cnaDescription
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
X_Refsource_Confirm x_refsource_confirm
https://github.com/notamitgamer/mojic/security/advisories/GHSA-wqq3-wfmp-v85g
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