CVE•Published 2026-03-05•Modified 2026-09-14•1 article on news•4 live references•NVD data
CVE-2026-3009Redhat · Build_of_keycloak
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
26
Exploit Prediction Scoring System · top 74% of all CVEs
Weaknesses (CWE)
Description
A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.
Timeline
Published 2026-03-05
Modified 2026-09-14
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-2026-3009Hosts 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-2026-3009Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-3009Censys host search filtered to this CVE id.
grep.app
CVE-2026-3009Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-3009GitHub code search for direct mentions.
Google dork
"CVE-2026-3009" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2026-30098 repos
punkpeye/awesome-mcp-serversunknown
A collection of MCP servers.
xpaysh/awesome-x402unknown
🚀 Curated list of x402 resources: HTTP 402 Payment Required protocol for blockchain payments, crypto micropayments, AI agents, API monetization. Includes SDKs (TypeScript, Python,…
Supersonic/TLPEKotlin
CVE-2026-49881, using insecure context creation in Android 17's Telecom service to execute arbitrary code as UID 1000 system_server from an unprivileged app
tycloud97/awesome-starsunknown
A curated list of my GitHub stars by stargazed
hiifong/starListPython
Export your star's repository list
presidio-v/presidio-hardened-x402Python
Security middleware for x402 agentic payments — PII redaction, spending policy, and replay detection before blockchain commit
hugefiver/mystarsunknown
Ansvar-Systems/Dutch-law-mcpTypeScript
MCP server for Dutch legislation (wetten.overheid.nl)