Affects IBM API Connect, a widely used enterprise API management product; OAuth open-redirect enabling account takeover is high-impact for many organizations.
CVE-2026-17291
OAuth open-redirect in IBM API Connect can enable account takeover.
Is CVE-2026-17291 being exploited?
Not confirmed. CVE-2026-17291 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-17291?
CVE-2026-17291 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-17291?
Not known from our data. No patch reference has been recorded for CVE-2026-17291, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-17291 affect?
CVE-2026-17291 affects IBM API Connect 10.0.8.0-10.0.8.12, IBM API Connect 12.1.0.0-12.1.1.2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17291?
Apply vendor updates and enforce strict OAuth redirect whitelists
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated remote attacker can exploit OAuth open-redirect to capture authentication results and take over user accounts.
Patch when possible
- affected>= 12.1.0.0 and <= 12.1.1.2
- affected>= 10.0.8.0 and <= 10.0.8.12
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
timeline
- 7 Nov 2026Published
- 7 Nov 2026CVE record last updated · same day later
- 10 Nov 2026Analysed by vulneraibility.com · 3 days later
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.