CVE-2026-55452: Snipe/snipe it Snipe-IT Has CSV Formula Injection Vulnerability

MODERATE
Advisory Identifier: GHSA-whrx-mmgr-gpcf
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CWE-1236
Published
Advisory Summary

CVE-2026-55452 is a MODERATE snipe-it has csv formula injection vulnerability (CWE-1236: Improper Neutralization of Formula Elements in a CSV File) affecting Snipe/snipe it libraries in the Packagist ecosystem. The issue involves snipe-it has csv formula injection in activity report export. Remediation is available by upgrading affected packages to version 8.6.2.

CVE-2026-55452 at a Glance

CVE Identifier CVE-2026-55452
GHSA Identifier GHSA-whrx-mmgr-gpcf
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-1236: Improper Neutralization of Formula Elements in a CSV File
Affected Product Snipe/snipe it
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2026-55452

To remediate this vulnerability, upgrade all affected Snipe/snipe it dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

snipe/snipe-it fixed: 8.6.2 
Upgrade snipe/snipe-it to 8.6.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for snipe/snipe-it

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-55452, inspect your project dependencies for Snipe/snipe it:

inspect dependencies for snipe/snipe-it

Analyze the terminal output to locate any version of Snipe/snipe it in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.6.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1236: Improper Neutralization of Formula Elements in a CSV File, where the product saves user-provided information into a comma-separated value (csv) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product. In Snipe/snipe it, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact In Snipe-IT v8.6.1 and lower, `Actionlog::logaction()` stores the request User-Agent header in user_agent. That value is later included in the Activity Report CSV export by `ReportsController::postActivityReport()` and written with plain `fputcsv()`. A low-privileged authenticated user can set a formula-like User-Agent, perform a logged action, and have that value stored in the activity log. If an admin or report viewer later exports the Activity Report and opens it in spreadsheet software, the formula may execute. Example payload: `User-Agent: =HYPERLINK("https://example.com/","click")`

CVE-2026-55452 Affected Snipe/snipe it Versions

1 component(s)
Fixed Versions:
8.6.2
Product / Package Ecosystem Affected Versions Fixed Version
snipe/snipe-it
 Packagist
< 8.6.2
8.6.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/grokability/snipe-it/security/advisories/GHSA-whrx-mmgr-gpcf
NVD — CVE-2026-55452 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-55452
Security Fix Commit FIX COMMIT
https://github.com/grokability/snipe-it/commit/7b7d2c87fbc965a7933b1bf9e3f2c331b8c8e19c
Snipe/snipe it Source Repository REPOSITORY
https://github.com/grokability/snipe-it
Snipe/snipe it Release RELEASE
https://github.com/grokability/snipe-it/releases/tag/v8.5.0

Frequently Asked Questions

What is CVE-2026-55452?
CVE-2026-55452 is a security vulnerability in Snipe/snipe it involving Snipe-IT has CSV formula injection in Activity Report export under CWE-1236: Improper Neutralization of Formula Elements in a CSV File.
Which Snipe/snipe it versions are affected?
Affected versions include releases prior to 8.6.2 across affected packages: snipe/snipe-it.
What version fixes CVE-2026-55452?
Upgrading to 8.6.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is snipe/snipe-it affected?
Yes, snipe/snipe-it is affected in releases prior to 8.6.2. Upgrade your dependency to 8.6.2 or later.
What CWE is associated with CVE-2026-55452?
CVE-2026-55452 is classified under CWE-1236: Improper Neutralization of Formula Elements in a CSV File (The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.).
How can I check Packagist dependencies for CVE-2026-55452?
Run the dependency tree command: 'inspect dependencies for snipe/snipe-it'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-whrx-mmgr-gpcf",
  "modified" : "2026-08-28T17:46:16Z",
  "published" : "2026-08-28T17:46:16Z",
  "aliases" : [ "CVE-2026-55452" ],
  "summary" : "Snipe-IT has CSV formula injection in Activity Report export",
  "details" : "### Impact\nIn Snipe-IT v8.6.1 and lower, `Actionlog::logaction()` stores the request User-Agent header in user_agent. That value is later included in the Activity Report CSV export by `ReportsController::postActivityReport()` and written with plain `fputcsv()`.\n\nA low-privileged authenticated user can set a formula-like User-Agent, perform a logged action, and have that value stored in the activity log. If an admin or report viewer later exports the Activity Report and opens it in spreadsheet software, the formula may execute.\n\nExample payload:\n\n`User-Agent: =HYPERLINK(\"https://example.com/\",\"click\")`",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "snipe/snipe-it"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.6.2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 8.6.1"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/security/advisories/GHSA-whrx-mmgr-gpcf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-55452"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/commit/7b7d2c87fbc965a7933b1bf9e3f2c331b8c8e19c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/grokability/snipe-it"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/releases/tag/v8.5.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1236" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-28T17:46:16Z",
    "nvd_published_at" : "2026-07-10T20:16:46Z"
  }
}