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Security Bulletin: IBM App Connect Enterprise Certified Container operands are vulnerable to path traversal (CVE-2026-29087) and timing oracle attacks (GHSA-gq3j-xvxp-8hrf)

Security Bulletin


Summary

Node.js module hono is used by IBM App Connect Enterprise Certified Container. IBM App Connect Enterprise Certified Container operands are vulnerable to path traversal (CVE-2026-29087) and timing oracle attacks (GHSA-gq3j-xvxp-8hrf). This bulletin provides patch information to address the reported vulnerability in Node.js module hono

Vulnerability Details

CVEID:   CVE-2026-29087
DESCRIPTION:   @hono/node-server allows running the Hono application on Node.js. Prior to version 1.19.10, when using @hono/node-server's static file serving together with route-based middleware protections (e.g. protecting /admin/*), inconsistent URL decoding can allow protected static resources to be accessed without authorization. In particular, paths containing encoded slashes (%2F) may be evaluated differently by routing/middleware matching versus static file path resolution, enabling a bypass where middleware does not run but the static file is still served. This issue has been patched in version 1.19.10.
CWE:   CWE-863: Incorrect Authorization
CVSS Source:   security-advisories@github.com
CVSS Base score:   7.5
CVSS Vector:   (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

ID:   GHSA-gq3j-xvxp-8hrf
DESCRIPTION:   Hono added timing comparison hardening in basicAuth and bearerAuth. The basicAuth and bearerAuth middlewares previously used a comparison that was not fully timing-safe. The timingSafeEqual function used normal string equality (===) when comparing hash values. This comparison may stop early if values differ, which can theoretically cause small timing differences. The implementation has been updated to use a safer comparison method.
CWE:   CWE-208: Observable Timing Discrepancy
CVSS Source:   GitHub
CVSS Base score:   3.7
CVSS Vector:   (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
IBM App Connect Operator

CD: 12.19.0 - 12.21.0

IBM App Connect Enterprise
Certified Containers Operands

CD: 13.0.6.0-r1 - 13.0.6.2-r1

Remediation/Fixes

IBM strongly suggests the following:

App Connect Enterprise Certified Container up to 12.21.0 (Continuous Delivery)

Upgrade to App Connect Enterprise Certified Container Operator version 13.0.0 or higher, and ensure that all components are at 13.0.7.0-r1 or higher.  Documentation on the upgrade process is available at https://www.ibm.com/docs/en/app-connect/13.0?topic=releases-upgrading-operator


App Connect Enterprise Certified Container 12.0 LTS (Long Term Support)

Upgrade to App Connect Enterprise Certified Container Operator version 12.0.22 or higher, and ensure that all components are at 12.0.12-r22 or higher.  Documentation on the upgrade process is available at https://www.ibm.com/docs/en/app-connect/12.0?topic=umfpr-upgrading-operator-releases

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

07 Apr 2026: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
07 April 2026

Initial Publish date:
07 April 2026

UID

ibm17268743