CVE-2026-5749

Inadequate access control vulnerability in Fullstep

HIGH
8.7
CVSS Score
Published: April 22, 2026 at 01:23 PM UTC
Updated: June 17, 2026 at 10:59 AM UTC
1 product affected across 1 vendorFullstep

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Severity
HIGH8.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Inadequate access control in the registration process in Fullstep V5, which could allow unauthenticated users to obtain a valid JWT token with which to interact with authenticated API resources. Successful exploitation of this vulnerability could allow an unauthenticated attacker to compromise the confidentiality of the affected resource, provided they have a valid token with which to interact with the API.

Affected

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

Vendor states this is fixed in 5.30.07 (unaffected)

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

8.7HIGHINCIBE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-306

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