What’s Vulnerable › Vulnerabilities

CVE-2026-41244: Mojic: Observable Timing Discrepancy in HMAC Verification

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-24 · updated 2026-10-26
• Weakness: CWE-208

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

• notamitgamer mojic: before 2.1.4

References

• https://github.com/notamitgamer/mojic/security/advisories/GHSA-wqq3-wfmp-v85g
• https://github.com/notamitgamer/mojic/security/advisories/GHSA-wqq3-wfmp-v85g

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