CVE-2023-0456

Apicast proxies the api call with incorrect jwt token to the api backend without proper authorization check

HIGH
7.5
CVSS Score
Published: September 27, 2023 at 01:39 PM UTC
Updated: June 17, 2026 at 05:25 AM UTC
2 products affected across 1 vendorApicast3SCALE API Management Platform

Using apicast by N/A?

Get instant alerts when new vulnerabilities affect apicast - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A flaw was found in APICast, when 3Scale's OIDC module does not properly evaluate the response to a mismatched token from a separate realm. This could allow a separate realm to be accessible to an attacker, permitting access to unauthorized information.

Affected

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

v < 2.12.22.13.0 ≤ v < 2.13.2
Vendor states this is fixed in 2.12.2 (unaffected)
Vendor states this is fixed in 2.13.2 (unaffected)
Vendor states this is fixed in 2.14.0 (unaffected)

Remediation

No guide yet

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

References (2)

VDB Entryx_refsource_REDHATVendor Advisory
https://access.redhat.com/security/cve/CVE-2023-0456
Issue Trackingx_refsource_REDHATExploitVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2163586

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-285CWE-862

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card