Is CVE-2026-32762 actively exploited?

No active exploitation of CVE-2026-32762 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-32762 be exploited remotely?

Yes. CVE-2026-32762 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-32762?

CVE-2026-32762 has a CVSS score of 4.8 (MEDIUM).

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MEDIUM

CVE-2026-32762

CWE-436Published: April 2, 2026· Updated: Apr 3, 2026

4.8

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.8th

Official Description

Rack is a modular Ruby web server interface. From versions 3.0.0.beta1 to before 3.1.21 and 3.2.0 to before 3.2.6, Rack::Utils.forwarded_values parses the RFC 7239 Forwarded header by splitting on semicolons before handling quoted-string values. Because quoted values may legally contain semicolons, a header can be interpreted by Rack as multiple Forwarded directives rather than as a single quoted for value. In deployments where an upstream proxy, WAF, or intermediary validates or preserves quoted Forwarded values differently, this discrepancy can allow an attacker to smuggle host, proto, for, or by parameters through a single header value. This issue has been patched in versions 3.1.21 and 3.2.6.

NVD Source

Technical Analysis

CVE-2026-32762 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.