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Not in CISA KEV
HIGH severity

CVE-2026-17356

HIGH

CVE-2026-17356 is a high-severity (CVSS 8.7) CWE-321 vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a local attacker to obtain sensitive information due to the use of a hard-coded cryptographic key.

Published
Updated
Affected
—
Patched
—
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a local attacker to obtain sensitive information due to the use of a hard-coded cryptographic key.

Detection & mitigation playbook

Vulnerability

  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    The records we use list no fixed release for CVE-2026-17356. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a local attacker to obtain sensitive information due to the use of a hard-coded cryptographic key.
O3 Security · Impact-Aware SCA

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