CVE-2026-102279: Laravel Cross-Site Scripting Vulnerability

LOW
Advisory Identifier: GHSA-jh5r-qr3c-85q8
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CVSS 3.1
CWE-80
Published
Advisory Summary

CVE-2026-102279 is a LOW (CVSS 3.1) cross-site scripting vulnerability (CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)) affecting Laravel libraries in the Packagist ecosystem. The issue involves xss in debug page information. Remediation is available by upgrading affected packages to version 12.69.0, 13.30.0.

CVE-2026-102279 at a Glance

CVE Identifier CVE-2026-102279
GHSA Identifier GHSA-jh5r-qr3c-85q8
Severity LOW
CVSS v3.1 Base Score 3.1
CWE Classification CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Affected Product Laravel
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 3.1

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

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

How to Fix CVE-2026-102279

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

laravel/framework fixed: 12.69.0 
Upgrade laravel/framework to 12.69.0
laravel/framework fixed: 13.30.0 
Upgrade laravel/framework to 13.30.0
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 laravel/framework

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-102279, inspect your project dependencies for Laravel:

inspect dependencies for laravel/framework

Analyze the terminal output to locate any version of Laravel in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 12.69.0), 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-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS), where the product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. In Laravel, 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 When `APP_DEBUG=true`, attacker-controlled input is passed to a Tippy.js tooltip configured with `allowHTML: true`, enabling DOM-based XSS during mouse hover. ### Patches [#61381](https://github.com/laravel/framework/pull/61381)

CVE-2026-102279 Affected Laravel Versions

2 component(s)
Fixed Versions:
12.69.013.30.0
Product / Package Ecosystem Affected Versions Fixed Version
laravel/framework
 Packagist
< 12.69.0
12.69.0
laravel/framework
 Packagist
≥ 13.0.0
< 13.30.0
13.30.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/laravel/framework/security/advisories/GHSA-jh5r-qr3c-85q8
NVD — CVE-2026-102279 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102279
Laravel Source Repository REPOSITORY
https://github.com/laravel/framework/pull/61381
Security Fix Commit FIX COMMIT
https://github.com/laravel/framework/commit/b495ca2ec4e15a977e8700328bf13e8a79f29d12
Laravel Source Repository REPOSITORY
https://github.com/laravel/framework
Laravel Release RELEASE
https://github.com/laravel/framework/releases/tag/v12.69.0
Laravel Release RELEASE
https://github.com/laravel/framework/releases/tag/v13.30.0

Frequently Asked Questions

What is CVE-2026-102279?
CVE-2026-102279 is a security vulnerability in Laravel involving XSS in Debug Page Information under CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS).
Which Laravel versions are affected?
Affected versions include releases prior to 12.69.0, 13.30.0 across affected packages: laravel/framework.
What version fixes CVE-2026-102279?
Upgrading to 12.69.0, 13.30.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is laravel/framework affected?
Yes, laravel/framework is affected in releases prior to 12.69.0, 13.30.0. Upgrade your dependency to 12.69.0, 13.30.0 or later.
What is the CVSS score of CVE-2026-102279?
CVE-2026-102279 has a CVSS v3.1 base score of 3.1 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-102279?
CVE-2026-102279 is classified under CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) (The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.).
How can I check Packagist dependencies for CVE-2026-102279?
Run the dependency tree command: 'inspect dependencies for laravel/framework'. 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-jh5r-qr3c-85q8",
  "modified" : "2026-09-29T18:24:25Z",
  "published" : "2026-09-29T18:24:25Z",
  "aliases" : [ "CVE-2026-102279" ],
  "summary" : "Laravel: XSS in Debug Page Information",
  "details" : "### Impact\nWhen `APP_DEBUG=true`, attacker-controlled input is passed to a Tippy.js tooltip configured with `allowHTML: true`, enabling DOM-based XSS during mouse hover.\n\n### Patches\n[#61381](https://github.com/laravel/framework/pull/61381)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "laravel/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "12.69.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "laravel/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.0.0"
      }, {
        "fixed" : "13.30.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/security/advisories/GHSA-jh5r-qr3c-85q8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-102279"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/pull/61381"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/commit/b495ca2ec4e15a977e8700328bf13e8a79f29d12"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/laravel/framework"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/releases/tag/v12.69.0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/releases/tag/v13.30.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-80" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-29T18:24:25Z",
    "nvd_published_at" : "2026-09-28T21:17:16Z"
  }
}