CVE-2026-55843: Snipe/snipe it Snipe-IT Has An Improper Privilege Vulnerability

HIGH
Advisory Identifier: GHSA-j5g3-42wp-gqm3
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CVSS 6.5
CWE-269
Published
Advisory Summary

CVE-2026-55843 is a HIGH (CVSS 6.5) snipe-it has an improper privilege vulnerability (CWE-269: Improper Privilege Management) affecting Snipe/snipe it libraries in the Packagist ecosystem. The issue involves snipe-it has an improper privilege management issue. Remediation is available by upgrading affected packages to version 8.6.0.

CVE-2026-55843 at a Glance

CVE Identifier CVE-2026-55843
GHSA Identifier GHSA-j5g3-42wp-gqm3
Severity HIGH
CVSS v3.1 Base Score 6.5
CWE Classification CWE-269: Improper Privilege Management
Affected Product Snipe/snipe it
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-55843

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: 8.6.0 
Upgrade snipe/snipe-it to 8.6.0
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-2026-55843, 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 8.6.0), 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-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. 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 The `update()` method in `UsersController` passes the `permission` request field unconditionally to `NormalizePermissionsPayloadAction`, which returns an empty array when the field is absent. The result is passed to `PreserveUnauthorizedPrivilegedPermissionsAction`, which selectively restores only the `superuser` key (when the editor is not a superuser) and the `admin` key (when the editor is neither admin nor superuser). All other permissions — including the `admin` flag itself when the editing user is an admin — are discarded and `$user->permissions` is overwritten with the sparse result. The `canEditAuthFields` gate permits admins to update other non-superuser accounts (including other admins). When an admin sends a `PUT /users/{id}` request for another admin without including the `permission` field, the target's `admin` flag and all granular permissions are permanently destroyed. The target loses administrative access entirely with no error, warning, or out-of-band notification. A secondary, lower-impact path exists for non-admin users holding the `users.edit` permission: they may target regular (non-admin, non-superuser) accounts and wipe all granular permissions in the same way. ### Patches Patched in https://github.com/grokability/snipe-it/commit/1cff2d67aabd00ee51d864c1d7fb717494c1d6ad

CVE-2026-55843 Affected Snipe/snipe it Versions

1 component(s)
Fixed Versions:
8.6.0
Product / Package Ecosystem Affected Versions Fixed Version
snipe/snipe-it
 Packagist
< 8.6.0
8.6.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/grokability/snipe-it/security/advisories/GHSA-j5g3-42wp-gqm3
NVD — CVE-2026-55843 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-55843
Security Fix Commit FIX COMMIT
https://github.com/grokability/snipe-it/commit/1cff2d67aabd00ee51d864c1d7fb717494c1d6ad
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/v8.6.0

Frequently Asked Questions

What is CVE-2026-55843?
CVE-2026-55843 is a security vulnerability in Snipe/snipe it involving Snipe-IT has an Improper Privilege Management issue under CWE-269: Improper Privilege Management.
Which Snipe/snipe it versions are affected?
Affected versions include releases prior to 8.6.0 across affected packages: snipe/snipe-it.
What version fixes CVE-2026-55843?
Upgrading to 8.6.0 (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 8.6.0. Upgrade your dependency to 8.6.0 or later.
What is the CVSS score of CVE-2026-55843?
CVE-2026-55843 has a CVSS v3.1 base score of 6.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.
What CWE is associated with CVE-2026-55843?
CVE-2026-55843 is classified under CWE-269: Improper Privilege Management (The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.).
How can I check Packagist dependencies for CVE-2026-55843?
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-j5g3-42wp-gqm3",
  "modified" : "2026-08-28T22:37:24Z",
  "published" : "2026-08-28T22:37:24Z",
  "aliases" : [ "CVE-2026-55843" ],
  "summary" : "Snipe-IT has an Improper Privilege Management issue",
  "details" : "## Impact\n\nThe `update()` method in `UsersController` passes the `permission` request field unconditionally to `NormalizePermissionsPayloadAction`, which returns an empty array when the field is absent. The result is passed to `PreserveUnauthorizedPrivilegedPermissionsAction`, which selectively restores only the `superuser` key (when the editor is not a superuser) and the `admin` key (when the editor is neither admin nor superuser). All other permissions — including the `admin` flag itself when the editing user is an admin — are discarded and `$user->permissions` is overwritten with the sparse result.\n\nThe `canEditAuthFields` gate permits admins to update other non-superuser accounts (including other admins). When an admin sends a `PUT /users/{id}` request for another admin without including the `permission` field, the target's `admin` flag and all granular permissions are permanently destroyed. The target loses administrative access entirely with no error, warning, or out-of-band notification.\n\nA secondary, lower-impact path exists for non-admin users holding the `users.edit` permission: they may target regular (non-admin, non-superuser) accounts and wipe all granular permissions in the same way.\n\n### Patches\nPatched in https://github.com/grokability/snipe-it/commit/1cff2d67aabd00ee51d864c1d7fb717494c1d6ad",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "snipe/snipe-it"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.6.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/security/advisories/GHSA-j5g3-42wp-gqm3"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-55843"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/commit/1cff2d67aabd00ee51d864c1d7fb717494c1d6ad"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/grokability/snipe-it"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/releases/tag/v8.6.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-269" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-28T22:37:24Z",
    "nvd_published_at" : "2026-07-10T19:17:26Z"
  }
}