GHSA-467c-wf8v-3rh9MediumCVSS 6.5
Higress before 2.2.4 panics when processing a Cookie header segment without an equals sign,...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-92790
- https://github.com/higress-group/higress/issues/4599
- https://github.com/higress-group/higress
- https://github.com/higress-group/higress/blob/v2.2.3/plugins/wasm-go/extensions/ai-token-ratelimit/util/utils.go#L52-L63
- https://github.com/higress-group/higress/blob/v2.2.4/plugins/wasm-go/extensions/ai-token-ratelimit/util/utils.go#L52-L63
- https://www.vulncheck.com/advisories/higress-before-2.2.4-rate-limit-bypass-via-malformed-cookie-header
- https://github.com/advisories/GHSA-467c-wf8v-3rh9