What’s Vulnerable › Vulnerabilities

CVE-2017-1000098

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-10-05 · updated 2026-06-17
• Weakness: CWE-769

Description

The net/http package's Request.ParseMultipartForm method starts writing to temporary files once the request body size surpasses the given "maxMemory" limit. It was possible for an attacker to generate a multipart request crafted such that the server ran out of file descriptors.

Affected products

• Go: before 1.6.4; from 1.7 before 1.7.4 — fixed in 1.6.4, 1.7.4

How to fix

Upgrade to a fixed version: Go 1.6.4, 1.7.4. Check the vendor advisory for mitigations.

References

• https://golang.org/cl/30410
• https://golang.org/issue/17965
• https://groups.google.com/forum/#%21msg/golang-dev/4NdLzS8sls8/uIz8QlnIBQAJ
• https://golang.org/cl/30410
• https://golang.org/issue/17965
• https://groups.google.com/forum/#%21msg/golang-dev/4NdLzS8sls8/uIz8QlnIBQAJ

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