CVE Catalog

CVE-2026-67201

HighCVSS 8.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.39%

32th percentile - higher than 32% of all known CVEs

Summary

In V through version 0.5.2, an SSRF bypass vulnerability exists that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. A crafted URL with a backslash in the authority section can bypass validation and connect to an internal host.

Risk Assessment

This vulnerability allows an attacker to access internal network services that should be blocked by the allowlist, potentially leading to data exfiltration or further compromise.

Recommendation

Apply commit 85859f0 or upgrade to a patched version.

Related vulnerabilities

Original NVD description (English source)

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery (SSRF) bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authority section such that net.urllib.parse() extracts the trusted host for allowlist validation while net.http.get() normalizes the backslash and connects to the internal host, enabling access to internal network services that the allowlist was intended to block.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS