CVE-2026-27933

Manyfold vulnerable to session hijack via cookie leakage in proxy caches

MEDIUM
6.8
CVSS Score
Published: February 25, 2026 at 11:16 PM UTC
Updated: June 17, 2026 at 10:27 AM UTC
2 products affected across 2 vendorsManyfoldManyfold

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.133.0
v < 0.133.0
Affected range stops below 0.133.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/manyfold3d/manyfold/security/advisories/GHSA-g949-hmvj-2r76
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/manyfold3d/manyfold/releases/tag/v0.133.0

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-613

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