What’s Vulnerable › Vulnerabilities

CVE-2016-7037

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-01-23 · updated 2026-06-17
• Weakness: CWE-361

Description

The verify function in Encryption/Symmetric.php in Malcolm Fell jwt before 1.0.3 does not use a timing-safe function for hash comparison, which allows attackers to spoof signatures via a timing attack.

Affected products

• Emarref Jwt: through 1.0.2

References

• http://www.securityfocus.com/bid/95847
• https://github.com/emarref/jwt/pull/20
• https://github.com/emarref/jwt/releases/tag/1.0.3
• http://www.securityfocus.com/bid/95847
• https://github.com/emarref/jwt/pull/20
• https://github.com/emarref/jwt/releases/tag/1.0.3

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