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Vendor Solution
Fixed in commit 93dc0e50739c225f5aee2e803800a47fc0feb906, which hardcodes the https scheme in the redirect. The fix is deployed to edu.chainguard.dev; no user action is required.
Tracking
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Tue, 06 Oct 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Chainguard
Chainguard chainguard Academy (edu) |
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| Vendors & Products |
Chainguard
Chainguard chainguard Academy (edu) |
Tue, 06 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Mon, 05 Oct 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Use of the backend-facing $scheme variable in the trailing-slash directory redirect in nginx.conf of Chainguard Academy (edu) from commit 0b75ff98057f69b044a3e7194e428066ac5ad0d4 before commit 93dc0e50739c225f5aee2e803800a47fc0feb906 allows an on-path network attacker to read or modify documentation content served to a victim via an HTTPS request for a slashless directory path, because TLS terminates at the load balancer in front of Nginx and the resulting 301 response redirects the client to a plaintext http:// URL. Browsers that ship the HSTS preload list are not affected, because the .dev top-level domain is preloaded; clients that do not enforce HSTS, such as command-line HTTP clients and scripts that follow redirects, are affected. | |
| Title | Chainguard Academy (edu) Nginx directory redirect downgrades HTTPS requests to HTTP | |
| Weaknesses | CWE-319 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: chainguard
Published:
Updated: 2026-10-06T13:44:09.303Z
Reserved: 2026-10-05T19:21:04.930Z
Link: CVE-2026-105766
Updated: 2026-10-06T13:43:56.582Z
Status : Deferred
Published: 2026-10-05T20:17:20.620
Modified: 2026-10-06T15:03:59.427
Link: CVE-2026-105766
No data.
OpenCVE Enrichment
Updated: 2026-10-06T20:57:04Z