fix(deps): bump postcss to 8.5.18, fixes CVE-2026-45623 - #1049
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Path traversal in previous-map sourceMappingURL auto-loading (GHSA alerts #156, #157) let attacker-controlled CSS read arbitrary .map files via a crafted sourceMappingURL comment. Top-level devDependency was pinned to ^8.5.6; bumping to ^8.5.18 resolves both alerts for that resolution. next's internally-pinned postcss@8.4.31 is unaffected by this bump (Next controls that pin directly, unfixable from userland, and Next only runs postcss over our own trusted CSS at build time -- not the untrusted-input scenario this CVE requires).
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| Status | Name | Latest Commit | Preview URL | Updated (UTC) |
|---|---|---|---|---|
| ✅ Deployment successful! View logs |
landing-page | a3d4ea8 | Commit Preview URL Branch Preview URL |
Jul 26 2026, 09:47 AM |
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Captures the bun-add-g-npm bootstrap needed on this host, and the check-upstream-before-blocking pattern for nested framework-pinned deps, from fixing the postcss security alerts (task #23995, PR aibtcdev/landing-page#1049).
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Summary
postcssdevDependency from^8.5.6to^8.5.18, resolving Dependabot alerts Achievements not proactively surfaced for qualifying on-chain activity #156 and CLAUDE.md documents wrong address type for identity token URI #157 (CVE-2026-45623, GHSA path-traversal inprevious-map.jssourceMappingURL auto-loading, CVSS 7.5).next's internally-pinnedpostcss@8.4.31(its own dependency, unrelated to ourpackage.json) is untouched — evennext@lateststill pins exactly8.4.31for its internal build pipeline, so it's not something we control. It's also low-risk here: Next only runs postcss over our own trusted source CSS at build time, not attacker-supplied CSS at request time, which is what this CVE requires.Test plan
npx tsc --noEmit— same pre-existing failures on base branch and this branch (unrelated test-type errors, confirmed viagit stashdiff)npx next build— succeeds, CSS/Tailwind output generated correctly🤖 Generated with Claude Code