Phenixdigital: code injection

Storybook

Code Injection vulnerability in phenixdigital phoenix_storybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation.

Fix it

Storybook

Upgrade to Storybook 1.1.0

phoenix_storybook hex

Fixed in 1.1.0, a new major version: read the upgrade notes first

First seen: 27 Oct 2026
Last update: 27 Oct 2026, 17:17 UTC
Fixed in: phoenix_storybook 1.1.0
Identifiers: CVE-2026-8467
CVSS: 9.5
Source: news
On the menu as: npm packages

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Phenixdigital: code injection
Severity: critical. Patch status: patched.
Affected: Storybook
Fixed in: phoenix_storybook 1.1.0
Ids: CVE-2026-8467

Code Injection vulnerability in phenixdigital phoenix_storybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation.

## Steps
1. Search every lockfile and manifest (package-lock.json, yarn.lock, pnpm-lock.yaml, requirements*.txt, poetry.lock, uv.lock, composer.lock, go.sum, Cargo.lock, Gemfile.lock) for `phoenix_storybook`. For each hit, compare the installed version with the fix on the same major line: phoenix_storybook 1.1.0. If it's lower, give the exact upgrade command for the package manager this repo uses.
2. Fix by release line: phoenix_storybook: >= 0.5.0 < 1.1.0 → 1.1.0. Storybook: 1.1.0.

## Fix by release line
| Line | State | Fix | Until then |
|---|---|---|---|
| phoenix_storybook >= 0.5.0 < 1.1.0 | fixed | 1.1.0 | — |
| Storybook | fixed | 1.1.0 | — |

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-8467") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://cna.erlef.org/cves/CVE-2026-8467.html https://nvd.nist.gov/vuln/detail/CVE-2026-8467
https://pwned.coffee/i/phenixdigital-code-injection-cve-2026-8467

Timeline

27 Oct 2026, 17:17 UTC
Fix status: unknown → patched.
27 Oct 2026
First reported.

Receipt

Exploitation: Public exploit code, no attacks reported
CISA ADP “CISA ADP rates exploitation of CVE-2026-8467 "poc" (SSVC).” source
Fix by release line: Product Affected Fixed in Source
phoenix_storybook (hex) >= 0.5.0, < 1.1.0 1.1.0 GitHub advisory checked 27 Oct
Storybook before 1.1.0 1.1.0 CVE record (CNA) checked 27 Oct
Score: CVSS 9.5 (critical). CVSS 4.0 9.5 (CNA EEF) for CVE-2026-8467
Last checked: 27 Oct 2026, 17:17 UTC

Product	Affected	Fixed in	Source
phoenix_storybook (hex)	>= 0.5.0, < 1.1.0	1.1.0	GitHub advisory checked 27 Oct
Storybook	before 1.1.0	1.1.0	CVE record (CNA) checked 27 Oct

Sources: KEV – CVE record ✓ Vendor ✓

Sources

Wrong fix version, or a source we missed? Send it back to chef@pwned.coffee with the source, and we'll correct it here.

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