CVE-2026-20239

mediumpriority · track · 26EPSS 0.005 · 42 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.48% (42nd) EPSS

CVSS 6.5 · medium

Is it mine?

30 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.5

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 1.6 · impact 5.9

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-532US

affected products (30)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Splunk Splunk Enterprise <10.0.10all versionscert_bundDE
Splunk Splunk Enterprise <10.2.7all versionscert_bundDE
Splunk Splunk Enterprise <10.4.3all versionscert_bundDE
Splunk Splunk Enterprise <9.4.15all versionscert_bundDE
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Splunk Splunk Enterprise< 10.0.10cert_bundDE
Splunk Splunk Enterprise< 10.0.5cert_bundDE
Splunk Splunk Enterprise< 10.0.8cert_bundDE
Splunk Splunk Enterprise< 10.2.2cert_bundDE
Splunk Splunk Enterprise< 10.2.5cert_bundDE
Splunk Splunk Enterprise< 10.2.7cert_bundDE
Splunk Splunk Enterprise< 10.4.1cert_bundDE
Splunk Splunk Enterprise< 10.4.3cert_bundDE
Splunk Splunk Enterprise< 9.4.13cert_bundDE
Splunk Splunk Enterprise< 9.4.15cert_bundDE
Splunk Splunk Cloud Platform10.0.2503 → 10.0.2503.13enisa_euvdEU
Splunk Splunk Cloud Platform10.1.2507 → 10.1.2507.21enisa_euvdEU

showing 20 of 30

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1618Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-05-20csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2026-05-20modified 2026-07-23

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan