What’s Vulnerable › Vulnerabilities

CVE-2020-13482

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-05-25 · updated 2026-06-17
• Weakness: CWE-295

Description

EM-HTTP-Request 1.1.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.

Affected products

• Em-Http-Request Project Em-Http-Request: 1.1.5
• Fedoraproject Fedora: 32, 33

References

• https://github.com/igrigorik/em-http-request/issues/339
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MKYP5TR5NTVVDX5R4HCNNH2OQR7M4X3J/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z32PUJA6RGBZ3TKSOTGUXZ45662S3MVF/
• https://securitylab.github.com/advisories/GHSL-2020-094-igrigorik-em-http-request
• https://github.com/igrigorik/em-http-request/issues/339
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MKYP5TR5NTVVDX5R4HCNNH2OQR7M4X3J/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z32PUJA6RGBZ3TKSOTGUXZ45662S3MVF/
• https://securitylab.github.com/advisories/GHSL-2020-094-igrigorik-em-http-request

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