CVE-2026-103030

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Source
https://cve.org/CVERecord?id=CVE-2026-103030
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103030.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-103030
Aliases
  • GHSA-cr65-55v9-xhvv
Published
2026-10-13T16:31:34Z
Modified
2026-10-15T02:47:37Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Dio: Cross-origin redirect leaks sensitive request headers in `dio_http2_adapter`
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-200"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103030.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "1.0.0"
                },
                {
                    "fixed":  "2.8.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/cfug/dio

Affected ranges

Type
GIT
Repo
https://github.com/cfug/dio
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9d7ac913340084f3b4987b121e076f28d637a81e
Fixed
9d6f43eda20af11ffff92e6f6ee710f0d03ffe9b
Database specific
Show details 
{
    "source":  "REFERENCES"
}

Affected versions

3.*
3.0.0
3.0.10
3.0.2
3.0.5
3.0.6
3.0.8
3.0.9
4.*
4.0.0
4.0.1
4.0.2
4.0.2-beta1
4.0.3
compatibility_layer_v0.*
compatibility_layer_v0.1.0
compatibility_layer_v0.1.1
cookie_manager_v2.*
cookie_manager_v2.1.1
cookie_manager_v2.1.2
cookie_manager_v2.1.3
cookie_manager_v2.1.4
cookie_manager_v3.*
cookie_manager_v3.0.0
cookie_manager_v3.1.0
cookie_manager_v3.1.0+1
cookie_manager_v3.1.1
cookie_manager_v3.2.0
cookie_manager_v3.3.0
cookie_manager_v3.4.0
dio_v5.*
dio_v5.0.1
dio_v5.0.2
dio_v5.0.3
dio_v5.1.0
dio_v5.1.1
dio_v5.1.2
dio_v5.10.0
dio_v5.2.0
dio_v5.2.0+1
dio_v5.2.1
dio_v5.2.1+1
dio_v5.3.0
dio_v5.3.1
dio_v5.3.2
dio_v5.3.3
dio_v5.3.4
dio_v5.4.0
dio_v5.4.1
dio_v5.4.2
dio_v5.4.2+1
dio_v5.4.3
dio_v5.4.3+1
dio_v5.5.0
dio_v5.5.0+1
dio_v5.6.0
dio_v5.7.0
dio_v5.8.0
dio_v5.8.0+1
dio_v5.9.0
dio_v5.9.1
dio_v5.9.2
http2_adapter_v2.*
http2_adapter_v2.2.0
http2_adapter_v2.3.0
http2_adapter_v2.3.1
http2_adapter_v2.3.1+1
http2_adapter_v2.3.2
http2_adapter_v2.4.0
http2_adapter_v2.5.0
http2_adapter_v2.5.1
http2_adapter_v2.5.2
http2_adapter_v2.5.3
http2_adapter_v2.6.0
http2_adapter_v2.7.0
http2_adapter_v2.7.1
native_dio_adapter_v0.*
native_dio_adapter_v0.1.0
native_dio_adapter_v1.*
native_dio_adapter_v1.0.0+1
native_dio_adapter_v1.0.0+2
native_dio_adapter_v1.1.0
native_dio_adapter_v1.1.1
native_dio_adapter_v1.2.0
native_dio_adapter_v1.3.0
native_dio_adapter_v1.4.0
native_dio_adapter_v1.5.0
native_dio_adapter_v1.5.1
native_dio_adapter_v1.6.0
v5.*
v5.0.0
web_adapter_v1.*
web_adapter_v1.0.0
web_adapter_v1.0.1
web_adapter_v2.*
web_adapter_v2.0.0
web_adapter_v2.1.0
web_adapter_v2.1.1
web_adapter_v2.1.2
web_adapter_v2.2.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103030.json"