CVE-2026-105766
LOW
2,3
Source: 82cea9a6-e9e3-46fe-bdb0-3673de380178
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
LOW
3,1
Source: 82cea9a6-e9e3-46fe-bdb0-3673de380178
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none
Description
AI Translation Available
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.
319
Cleartext Transmission of Sensitive Information
DraftCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Potential Impacts:
Read Application Data
Modify Files Or Directories
Other
Applicable Platforms
Technologies:
Not Technology-Specific, Cloud Computing, Mobile, ICS/OT, System on Chip, Test/Debug Hardware
https://github.com/chainguard-dev/edu/commit/93dc0e50739c225f5aee2e803800a47fc0…
https://github.com/chainguard-dev/edu/pull/3989