CVE-2026-103030

Dio is a powerful HTTP client for Dart and Flutter. From 1.0.0 until 2.8.0, dio_http2_adapter follows redirects in Http2Adapter._fetch by copying the original RequestOptions.headers into the redirected HTTP/2 request without comparing the source and destination origins. A server contacted by an application can return a cross-origin Location redirect to a different-origin destination, which then receives preserved Authorization, Cookie, and Proxy-Authorization headers because RequestOptions.copyWith retains the full header map. The issue applies when applications use Http2Adapter for authenticated requests, and redirect following is enabled by default. This issue is fixed in version 2.8.0.

• CWE-200

• https://github.com/cfug/dio/commit/9d7ac913340084f3b4987b121e076f28d637a81e
• https://github.com/cfug/dio/releases/tag/http2_adapter_v2.8.0
• https://github.com/cfug/dio/security/advisories/GHSA-cr65-55v9-xhvv
• https://github.com/cfug/dio/security/advisories/GHSA-cr65-55v9-xhvv

Published

Oct 13, 2026

Last Modified

Oct 16, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-103010Heap-based buffer overflow in the legacy Blowfish decryption…7.8
• CVE-2026-103011Heap-based buffer overflow in the legacy Blowfish encryption…6.5
• CVE-2026-103012Claude Code selected an API key stored by Claude Code, for e…2
• CVE-2026-10302A flaw has been found in itsourcecode Fees Management System…6.3
• CVE-2026-103028SFTPGo is an open source, event-driven file transfer solutio…4.3
• CVE-2026-10303In ServerCo getssl version 2.49 and prior, the ACME challeng…7.4
• CVE-2026-103036oRPC is a tool that helps build APIs that are end-to-end typ…6.5
• CVE-2026-103038PingTools Network Utilities 4.64 contains an OS command inje…8.6
• CVE-2026-103039The Gravity Forms plugin for WordPress is vulnerable to PHP …9.8
• CVE-2026-103040LightLLM through 1.2.0 contains a remote code execution vuln…9.8
• CVE-2026-103041LightLLM through 1.2.0 multimodal deployments expose an unau…9.8
• CVE-2026-103042LightLLM through 1.2.0 contains a memory exhaustion vulnerab…7.5