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CVE-2026-20296· NVD / CVE Program· CNA cisco

SPL Command Safeguards Bypass through Cross-Site Request Forgery (CSRF) in Deployment Server in Splunk Enterprise

In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.7, 10.3.2512.16, 10.2.2510.18, and 10.1.2507.24, an attacker could trick a user that holds a role with the `list_deployment_server` capability into running arbitrary Search Processing Language (SPL) searches on their behalf as `splunk-system-user`, allowing for access to stored credentials and indexed data.<br><br>The vulnerability is possible because Deployment Server endpoints in Splunk Web do not validate Cross-Site Request Forgery (CSRF) tokens on GET requests, and caller-supplied input is not correctly neutralized before it is placed into an SPL search.

HighCVSS 8.3 · v3.1—No exploit No fix recorded

Noroxi analysis

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Published
Jul 15, 2026
Updated
Jul 24, 2026
EPSS
0.2% · 7th percentile
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Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
33 / 40 · 8.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · cisco
8.3
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
splunksplunk
splunksplunk cloud platform

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • splunk splunk9.4.0 and later · before 9.4.13
  • splunk splunk10.0.0 and later · before 10.0.8
  • splunk splunk10.2.0 and later · before 10.2.5
  • splunk splunk10.4.0
  • splunk splunk cloud platform10.1.2507 and later · before 10.1.2507.24
  • splunk splunk cloud platform10.2.2510 and later · before 10.2.2510.18
  • splunk splunk cloud platform10.3.2512 and later · before 10.3.2512.16
  • splunk splunk cloud platform10.4.2604 and later · before 10.4.2604.7

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

  • Splunk Splunk Cloud Platform

    • 10.5.2605 and later · before 10.5.2605.0affected
    • 10.4.2604 and later · before 10.4.2604.7affected
    • 10.3.2512 and later · before 10.3.2512.16affected
    • 10.2.2510 and later · before 10.2.2510.18affected
    • 10.1.2507 and later · before 10.1.2507.24affected
  • Splunk Splunk Enterprise

    • 10.4 and later · before 10.4.1affected
    • 10.2 and later · before 10.2.5affected
    • 10.0 and later · before 10.0.8affected
    • 9.4 and later · before 9.4.13affected

Other highest-scoring records for the same primary product.

  • CVE-2026-20253Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk EnterpriseKEV
    98Now
  • CVE-2023-32707‘edit_user’ Capability Privilege Escalation
    59Plan
  • CVE-2018-11409Splunk through 7.0.1 allows information disclosure by appending __raw/services/server/info/server-info?output_mode=json to a query, as demon
    50Plan
  • CVE-2026-20251Remote Code Execution through Deserialization of Untrusted Data in Splunk Secure Gateway
    45Plan
  • CVE-2023-32714Path Traversal in Splunk App for Lookup File Editing
    45Plan
  • CVE-2022-32158Splunk Enterprise deployment servers allow client publishing of forwarder bundles
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-20228476 days apartMaintenance mode state change of App Key Value Store (KVStore) through a Cross-Site Request Forgery (CSRF) in Splunk Enterprise
    26Monitor
  • CVE-2026-7633435 days apartSPL Injection through Dashboard Studio Workflow Actions in Splunk Enterprise
    25Monitor
  • CVE-2025-20321373 days apartMembership State Change in Splunk Search Head Cluster through a Cross-Site Request Forgery (CSRF) in Splunk Enterprise
    17Monitor
  • CVE-2025-20322373 days apartDenial of Service (DoS) in Search Head Cluster through Cross-Site Request Forgery (CSRF) in Splunk Enterprise
    17Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

nvd-secondary

Root cause

State-changing requests rely on the session cookie the browser sends automatically; nothing verifies that the request came from the user’s own page.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use(session({ cookie: { httpOnly: true } }));app.post("/account/address", updateAddress);

Fixed

ts
app.use(session({ cookie: { httpOnly: true, sameSite: "lax" } }));app.post("/account/address", csrfProtection, updateAddress);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records