HTTP Request Smuggling Affecting pingora-core package, versions <0.8.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUST-PINGORACORE-15426546
- published5 Mar 2026
- disclosed4 Mar 2026
- creditUnknown
Introduced: 4 Mar 2026
NewCVE-2026-2833 (opens in a new tab)How to fix?
Upgrade pingora-core to version 0.8.0 or higher.
Overview
pingora-core is a package containing Pingora's APIs and traits for the core network protocols.
Affected versions of this package are vulnerable to HTTP Request Smuggling in the handling of HTTP/1.1 requests containing an Upgrade header. An attacker can bypass proxy-level access controls and web application firewall logic, poison caches and upstream connections, or hijack user sessions by sending specially crafted HTTP requests that are forwarded to the backend before a proper protocol switch is confirmed. This is only exploitable if the deployment is a standalone proxy exposed directly to external traffic.