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HIGH severity

CVE-2026-17319

HIGH

CVE-2026-17319 is a high-severity (CVSS 7.1) CWE-862 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 remote authenticated attacker to modify tool configuration and cause a denial of service due to improper authorization. Information…

Published
Updated
Affected
—
Patched
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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 remote authenticated attacker to modify tool configuration and cause a denial of service due to improper authorization. Information supplied by the client is relied on when deciding what a user is allowed to do, which could allow unauthorized changes that disrupt service.

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-2026-17319. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to modify tool configuration and cause a denial of service due to improper authorization. Information supplied by the client is relied on when deciding what a user is allowed to do, which could allow unauthorized changes that disrupt service.
O3 Security · Impact-Aware SCA

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