The req package before 3.43.4 for Go may send an unintended request when a malformed URL is provided, because cleanHost in http.go intentionally uses a "garbage in, garbage out" design.
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This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 66% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
The req package before 3.43.4 for Go may send an unintended request when a malformed URL is provided, because cleanHost in http.go intentionally uses a "garbage in, garbage out" design.
August 25, 2024
April 15, 2026
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/imroc/req | — | — | — |
| github.com/imroc/req/v2 | — | — | — |
| github.com/imroc/req/v3 | — | 3.43.4 | — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
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