CVE-2024-31893Network attack vector

Calendar data disclosure via expired access token

Published May 22, 2024 · Updated Aug 2, 2024

Information disclosure in IBM App Connect Enterprise 12.0.1.0 through 12.0.12.1 allows remote authenticated users to read calendar data. The Calendly Discovery Connector accepts an expired access token when retrieving calendar information instead of rejecting the stale credential. Access to an authenticated connector session is required, and the reported consequence is limited to confidentiality loss.

CVSS severity4.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM App Connect Enterprise 12.0.1.0 through 12.0.12.1 allows remote authenticated users to read calendar data. The Calendly Discovery Connector accepts an expired access token when retrieving calendar information instead of rejecting the stale credential. Access to an authenticated connector session is required, and the reported consequence is limited to confidentiality loss.

The record

CVE
CVE-2024-31893
Published
May 22, 2024
Updated
Aug 2, 2024
Vendor
IBM
Product
App Connect Enterprise
Classifications
CWE-324
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=12.0.1.0 <=12.0.12.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · App Connect Enterpriseversion=12.0.1.0 <=12.0.12.1

Published CVSS scores

4.3IBM CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-324Use of a Key Past its Expiration Date

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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