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Hardening Traefik Against Header Alias Spoofing with underscoreHeadersStrategy and aliasHeadersStrategy (blog.lrvt.de)

submitted 2 hours ago by sanitation@lemmy.today to c/selfhosted@lemmy.world

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Traefik v3.7.12 deprecates the previously introduced underscoreHeadersStrategy entrypoint option and introduces a new one called aliasHeadersStrategy that rejects even more potentially spoofed headers - not just with underscores.

Reminder to adjust your Traefik config.

Add an entry point option to handle request headers with aliasing names by rtribotte · Pull Request #13720 · traefik/traefik

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[–] greyscale@lemmy.grey.ooo 5 points 1 hour ago

urg its hypocritical of me to say so but I groaned when I saw the branch name starts with claude/xxx

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lemmy:	0.19.20
mlmym (mschae):	26.3.4