CVE Catalog

CVE-2026-92790

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.52%

42th percentile - higher than 42% of all known CVEs

Summary

Higress before 2.2.4 panics when processing a Cookie header segment without an equals sign, causing the plugin wrapper to recover and return a continue action that bypasses AI token rate limiting. Unauthenticated attackers can craft a malformed Cookie header to skip rate limit checks and exceed thresholds intended to restrict costly model backend calls.

Risk Assessment

An attacker can bypass rate limits and trigger unlimited costly AI model calls, exhausting budget and resources. This can also enable service abuse or denial of service.

Recommendation

Upgrade Higress to version 2.2.4 or later. Consider additional monitoring and hard cost caps on the model backend side.

Related vulnerabilities

Original NVD description (English source)

Higress before 2.2.4 panics when processing a Cookie header segment without an equals sign, causing the plugin wrapper to recover and return a continue action that bypasses AI token rate limiting. Unauthenticated attackers can craft a malformed Cookie header to skip rate limit checks and exceed thresholds intended to restrict costly model backend calls.

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