CVE•Published 2026-05-20•Modified 2026-05-21•0 articles on news•5 live references•NVD data
CVE-2026-20239Splunk · Splunk
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
In Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a role that has access to the `_internal` index could view session cookies and response bodies that contain sensitive data.
Timeline
Published 2026-05-20
Modified 2026-05-21
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-2026-20239Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Splunk Splunk"All exposed Splunk Splunk instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Splunk"HTTP body or banner mentions "Splunk" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-20239Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-20239Censys host search filtered to this CVE id.
grep.app
CVE-2026-20239Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-20239GitHub code search for direct mentions.
Google dork
"CVE-2026-20239" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-20239 on GitHub.
We haven't classified any articles referencing CVE-2026-20239 yet. The external references above still apply.