GHSA-f9xw-jh8m-3mwq
AIOHTTP: Absolute-form request targets can spoof Request.scheme
At a glance
- Published
- Updated
- CVE
- CVE-2026-111748
- CVSS_V4
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Description
### Summary An attacker sending an absolute-form request can spoof the scheme used. ### Impact If user code depends on the `Request.scheme` attribute for anything security related, an attacker may be able to circumvent this logic, tricking the application into thinking a connection is encrypted when it is not, or vice versa. ### Workaround A WAF rule to reject absolute-form requests (legitimate requests should only use this form for proxies).
Affected packages
| Package | Versions |
|---|---|
| PyPI · aiohttp | introduced 0, fixed 3.14.4 |
References
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-f9xw-jh8m-3mwq WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-111748 ADVISORY
- https://github.com/aio-libs/aiohttp/commit/6d4e7b01f9b951aa084a75d7356e907d4ee80411 WEB
- https://github.com/aio-libs/aiohttp PACKAGE
- https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |