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VulnerabilityPublished

CVE-2026-27933: manyfold3d manyfold · Insufficient Session Expiration

Affects manyfold3d manyfoldSource CVE Database V5

0
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Not known to be exploited · CVSS 6.8 Medium : upgrade to 0.133.0 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.133.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade manyfold and manyfold3d/manyfold to 0.133.0.

Affected software

ProductAffectedFixed in
manyfold3dmanyfoldAffected
  • <0.133.0
Fixed in
  • 0.133.0
GitHubmanyfold3d/manyfoldpkg:github/manyfold3d/manyfoldOther threatsAffected
  • <0.133.0
Fixed in
  • 0.133.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Upgrade manyfold to version 0.133.0 or later, which contains the fix for this vulnerability.
  2. Review and configure all proxy caches and reverse proxies in front of manyfold to ensure that session cookies are not cached. This includes setting appropriate Cache-Control headers such as 'no-store' and 'private' on responses containing authentication cookies.
  3. Implement secure cookie attributes like 'HttpOnly', 'Secure', and 'SameSite' to reduce cookie leakage risks.
  4. Enforce short session lifetimes and implement session invalidation on logout or inactivity to minimize the window of opportunity for session hijacking.
  5. Monitor access logs for unusual access patterns that may indicate session hijacking attempts.
  6. Educate users about the risks of interacting with untrusted networks or proxies that may cache sensitive information.
  7. Consider deploying Web Application Firewalls (WAFs) that can detect and block suspicious session-related activities.
  8. Conduct regular security assessments and penetration tests focusing on session management and proxy configurations.

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.

References

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