CVE-2026-92790
mediumHigress 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…
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.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-16 21:17
Modified: 2026-09-24 20:48
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 06:54 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/higress-group/higress disclosure@vulncheck.com
- https://github.com/higress-group/higress/blob/v2.2.3/plugins/wasm-go/extensions/ai-token-r... disclosure@vulncheck.com
- https://github.com/higress-group/higress/blob/v2.2.4/plugins/wasm-go/extensions/ai-token-r... disclosure@vulncheck.com
- https://github.com/higress-group/higress/issues/4599 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/higress-before-2.2.4-rate-limit-bypass-via-malformed-... disclosure@vulncheck.com
- https://github.com/higress-group/higress/issues/4599 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:54 UTC · record ↗