.tip

May 25, 2026 · one of the small things

CI tokens get the permissions the job uses, and nothing else

The default GITHUB_TOKEN can write to the repository. A test job does not need that.

permissions:
  contents: read
jobs:
  release:
    permissions:
      contents: write
      id-token: write

Read at the top, write only on the job that publishes. A compromised dependency in the test job then cannot push a tag.

securityci

~/tips/today — 2026-09-04

~cat tips/today

Session cookies: HttpOnly, Secure, SameSite=Lax

securityhttp

Three attributes, each closing a class of attack. HttpOnly keeps scripts from reading it. Secure keeps it off plain HTTP. SameSite=Lax stops it being sent on cross-site POSTs, which is most CSRF.

Set-Cookie: session=...; HttpOnly; Secure; SameSite=Lax; Path=/; Max-Age=1209600

Strict breaks arriving from an external link while logged in. Lax is the default worth keeping.

↵ open y yesterday l ls /tips

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