CVE-2026-20202

mediumpriority · track · 0EPSS 0.002 · 16 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.25% (16th) EPSS

CVSS 6.6 · medium

Is it mine?

38 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.6, 10.2.2510.10, 10.1.2507.20, 10.0.2503.13, and 9.3.2411.127, a user who holds a role that contains the high-privilege capability `edit_user`could create a specially crafted username that includes a null byte or a non-UTF-8 percent-encoded byte due to improper input validation.<br><br>This could lead to inconsistent conversion of usernames into a proper format for storage and account management inconsistencies, such as being unable to edit or delete affected users.

cvss

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

6.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.6mediumAV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.6mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.16.6mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 0.7 · impact 5.9

v3.16.1mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/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-176USCWE-176US

affected products (38)

Products and version ranges known to be affected.

Splunk Splunk Enterprise <10.0.5all versionscert_bundDE
Splunk Splunk Enterprise <10.2.1all versionscert_bundDE
Splunk Splunk Enterprise <10.2.2all versionscert_bundDE
Splunk Splunk Enterprise <9.3.11all versionscert_bundDE
Splunk Splunk Enterprise <9.4.10all versionscert_bundDE
Splunk Splunk Enterprise< 10.0.5cert_bundDE
Splunk Splunk Enterprise< 10.2.1cert_bundDE
Splunk Splunk Enterprise< 10.2.2cert_bundDE
Splunk Splunk Enterprise< 9.3.11cert_bundDE
Splunk Splunk Enterprise< 9.4.10cert_bundDE
Splunk Splunk Cloud Platform10.0.2503 → 10.0.2503.13enisa_euvdEU
Splunk Splunk Cloud Platform10.1.2507 → 10.1.2507.20enisa_euvdEU
Splunk Splunk Cloud Platform10.2.2510 → 10.2.2510.10enisa_euvdEU
Splunk Splunk Cloud Platform10.3.2512 → 10.3.2512.6enisa_euvdEU
Splunk Splunk Cloud Platform10.4.2603 → Not Affectedenisa_euvdEU
Splunk Splunk Cloud Platform9.3.2411 → 9.3.2411.127enisa_euvdEU
Splunk Splunk Enterprise10.0 → 10.0.5enisa_euvdEU
Splunk Splunk Enterprise10.2 → 10.2.2enisa_euvdEU
Splunk Splunk Enterprise9.3 → 9.3.11enisa_euvdEU
Splunk Splunk Enterprise9.4 → 9.4.10enisa_euvdEU

showing 20 of 38

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1139Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-04-15csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und beliebigen Code auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-04-15modified 2026-10-26

references (4)

External citations — patches, advisories, analysis.

scry

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