VDB

CVE-2026-67201

CVE-2026-67201 PUBLISHED CVSS 7.7 HIGH

Reported by VulnCheck · Published July 29, 2026

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.

Risk Scores

CVSS 4.0
7.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

Affected Products

VendorProductVersions
vlangv0, 85859f0f3498d4091b38009c45ed390a97eeedc2
vlangv0, 85859f0f3498d4091b38009c45ed390a97eeedc2

Timeline

  • Jul 29, 2026 Coalition ESS Score
  • Jul 29, 2026 CVE Published
  • Jul 30, 2026 CVE Updated
  • Aug 7, 2026 EPSS Score

References

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