CVE-2026-25597: Prestashop/prestashop PrestaShop Affected By Time Based Vulnerability

MODERATE
Advisory Identifier: GHSA-67v7-3g49-mxh2
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CVSS 5.3
CWE-208
Published
Advisory Summary

CVE-2026-25597 is a MODERATE (CVSS 5.3) prestashop affected by time based vulnerability (CWE-208: Observable Timing Discrepancy) affecting Prestashop/prestashop libraries in the Packagist ecosystem. The issue involves prestashop affected by time based enumeration in fo login form. Remediation is available by upgrading affected packages to version 9.0.3, 8.2.4.

CVE-2026-25597 at a Glance

CVE Identifier CVE-2026-25597
GHSA Identifier GHSA-67v7-3g49-mxh2
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-208: Observable Timing Discrepancy
Affected Product Prestashop/prestashop
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

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

How to Fix CVE-2026-25597

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

prestashop/prestashop fixed: 9.0.3 
Upgrade prestashop/prestashop to 9.0.3
prestashop/prestashop fixed: 8.2.4 
Upgrade prestashop/prestashop to 8.2.4
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 prestashop/prestashop

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-25597, inspect your project dependencies for Prestashop/prestashop:

inspect dependencies for prestashop/prestashop

Analyze the terminal output to locate any version of Prestashop/prestashop in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.0.3), 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-208: Observable Timing Discrepancy, where two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. In Prestashop/prestashop, 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 A time-based user enumeration vulnerability in the user authentication functionality of PrestaShop. This vulnerability allows an attacker to determine whether a customer account exists in the system by measuring response times. ### Patches 8.2.4 and 9.0.3 ### Workarounds none ### References Found by Lam Yiu Tung

CVE-2026-25597 Affected Prestashop/prestashop Versions

2 component(s)
Fixed Versions:
9.0.38.2.4
Product / Package Ecosystem Affected Versions Fixed Version
prestashop/prestashop
 Packagist
≥ 9.0.0-alpha.1
< 9.0.3
9.0.3
prestashop/prestashop
 Packagist
< 8.2.4
8.2.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-67v7-3g49-mxh2
NVD — CVE-2026-25597 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25597
Prestashop/prestashop Source Repository REPOSITORY
https://github.com/PrestaShop/PrestaShop
Prestashop/prestashop Release RELEASE
https://github.com/PrestaShop/PrestaShop/releases/tag/8.2.4
Prestashop/prestashop Release RELEASE
https://github.com/PrestaShop/PrestaShop/releases/tag/9.0.3

Frequently Asked Questions

What is CVE-2026-25597?
CVE-2026-25597 is a security vulnerability in Prestashop/prestashop involving PrestaShop affected by time based enumeration in FO login form under CWE-208: Observable Timing Discrepancy.
Which Prestashop/prestashop versions are affected?
Affected versions include releases prior to 9.0.3, 8.2.4 across affected packages: prestashop/prestashop.
What version fixes CVE-2026-25597?
Upgrading to 9.0.3, 8.2.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is prestashop/prestashop affected?
Yes, prestashop/prestashop is affected in releases prior to 9.0.3, 8.2.4. Upgrade your dependency to 9.0.3, 8.2.4 or later.
What is the CVSS score of CVE-2026-25597?
CVE-2026-25597 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-25597?
CVE-2026-25597 is classified under CWE-208: Observable Timing Discrepancy (Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.).
How can I check Packagist dependencies for CVE-2026-25597?
Run the dependency tree command: 'inspect dependencies for prestashop/prestashop'. 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-67v7-3g49-mxh2",
  "modified" : "2026-02-06T21:43:34Z",
  "published" : "2026-02-03T21:13:02Z",
  "aliases" : [ "CVE-2026-25597" ],
  "summary" : "PrestaShop affected by time based enumeration in FO login form",
  "details" : "### Impact\nA time-based user enumeration vulnerability in the user authentication functionality of PrestaShop. This vulnerability allows an attacker to determine whether a customer account exists in the system by measuring response times.\n\n### Patches\n8.2.4 and 9.0.3\n\n### Workarounds\nnone\n\n### References\nFound by Lam Yiu Tung",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/prestashop"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0-alpha.1"
      }, {
        "fixed" : "9.0.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/prestashop"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.2.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-67v7-3g49-mxh2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-25597"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/PrestaShop/PrestaShop"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/releases/tag/8.2.4"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/releases/tag/9.0.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-208" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-03T21:13:02Z",
    "nvd_published_at" : "2026-02-06T21:16:17Z"
  }
}