CVE-2024-0560Network attack vector

Authenticated API access via failed token introspection

Published Feb 28, 2024 · Updated Nov 20, 2025

Authentication bypass in APIcast before 2.14.1 allows remote authenticated users to access subscribed services with revoked or expired tokens. The Token Introspection policy reads the removed token_introspection_endpoint discovery field in use_3scale_oidc_issuer_endpoint mode and treats the missing result as valid instead of inspecting the token. Attackers must obtain a token for an authorized client; APIcast still rejects client IDs without a service subscription.

CVSS severity6.3
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in APIcast before 2.14.1 allows remote authenticated users to access subscribed services with revoked or expired tokens. The Token Introspection policy reads the removed token_introspection_endpoint discovery field in use_3scale_oidc_issuer_endpoint mode and treats the missing result as valid instead of inspecting the token. Attackers must obtain a token for an authorized client; APIcast still rejects client IDs without a service subscription.

The record

CVE
CVE-2024-0560
Published
Feb 28, 2024
Updated
Nov 20, 2025
Vendor
Red Hat
Product
APIcast
Classifications
CWE-280, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.14.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Red Hat · APIcastversion=0 <2.14.1
389 Directory Server · Red Hat 3scale API ManagementAffected versions are unavailable in this record.

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
6.3Red HatCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-280Improper Handling of Insufficient Permissions or Privileges
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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