CVE-2026-20297
Path Traversal through 'explicit_appname' in the App Install REST Endpoint in Splunk Enterprise
No known exploitation. EPSS puts it in the 46th percentile. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- Splunk Cloud PlatformAffected: ≥ 10.5.2605, < 10.5.2605.0Upgrade to: 10.5.2605.0Affected: ≥ 10.4.2604, < 10.4.2604.6Upgrade to: 10.4.2604.6Affected: ≥ 10.2.2510, < 10.2.2510.18Upgrade to: 10.2.2510.18Affected: ≥ 10.1.2507, < 10.1.2507.24Upgrade to: 10.1.2507.24Stated by: CVE record
- Splunk EnterpriseAffected: ≥ 10.4, < 10.4.1Upgrade to: 10.4.1Affected: ≥ 10.2, < 10.2.5Upgrade to: 10.2.5Affected: ≥ 10.0, < 10.0.8Upgrade to: 10.0.8Affected: ≥ 9.4, < 9.4.13Upgrade to: 9.4.13 + 1 more branchStated by: CVE record
- SplunkAffected: ≥ 9.3.0, < 9.3.14Upgrade to: 9.3.14Stated by: NVD
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, 9.4.13, and 9.3.14, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.6, 10.2.2510.18, and 10.1.2507.24, a user who holds a role that contains the `edit_local_apps` and `install_apps` capabilities could cause a legitimate app installation to write files outside the intended app directory, into `$SPLUNK_HOME/etc/` and its subdirectories.<br><br>The vulnerability is caused by a path traversal in the app installation workflow, which does not restrict the installation path to the intended app directory.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.6% chance of exploitation activity in the next 30 days, which ranks it in the 46th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
8 events over 9 days, from the signal feeds we watch.
- Patch availablerecord updated
- OpenVAS check added
- Record updated
- Publishedweakness classified, att&ck mapped, record updated
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Scored 7.2 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required HighRequires admin or elevated privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
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