CVE•Published 2026-07-17•Modified 2026-08-31•0 articles on news•4 live references•NVD data
CVE-2026-16089Redhat · Build_of_keycloak
Vulnerability data via NVD (ingested)
CVSS v3.1
5.4
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N
EPSS percentile
4
Exploit Prediction Scoring System · top 96% of all CVEs
Description
A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an authorization code can modify it to be redeemed by their own client, potentially allowing them to obtain access tokens for a victim's identity.
Timeline
Published 2026-07-17
Modified 2026-08-31
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-16089Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Redhat Build Of Keycloak"All exposed Redhat Build Of Keycloak instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Build Of Keycloak"HTTP body or banner mentions "Build Of Keycloak" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-16089Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-16089Censys host search filtered to this CVE id.
grep.app
CVE-2026-16089Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-16089GitHub code search for direct mentions.
Google dork
"CVE-2026-16089" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (2)
We haven't classified any articles referencing CVE-2026-16089 yet. The external references above still apply.