Vulnerable Library - symfony/webpack-encore-bundle-v2.4.0
Vulnerabilities
| Vulnerability |
Severity |
 CVSS |
Dependency |
Type |
Fixed in (symfony/webpack-encore-bundle-v2.4.0 version) |
Remediation Possible** |
| CVE-2026-45075 |
 High |
8.1 |
symfony/http-kernel-v8.0.2 |
Transitive |
N/A* |
❌ |
*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2026-45075
Vulnerable Library - symfony/http-kernel-v8.0.2
Provides a structured process for converting a Request into a Response
Library home page: https://api.github.com/repos/symfony/http-kernel/zipball/bcef77a3c8ae8934ce7067172e2a1a6491a62a7d
Dependency Hierarchy:
- symfony/webpack-encore-bundle-v2.4.0 (Root Library)
- ❌ symfony/http-kernel-v8.0.2 (Vulnerable Library)
Found in base branch: develop
Vulnerability Details
Description Symfony's "#[IsGranted('...')]", "#[IsSignatureValid]", and "#[IsCsrfTokenValid(...)]" attributes allow you to define a "methods: [...]" argument to only enforce these checks for the listed HTTP methods and skip them otherwise. E.g. an attribute defining "methods: ['GET']" would be ignored for a "HEAD" request. On the other hand, Symfony's router (and HTTP semantics generally) serves "HEAD" requests using the "GET" handler. Therefore, a controller protected by e.g. "#[IsGranted('ROLE_ADMIN', methods: ['GET'])]" can be reached via "HEAD" with the authorization check silently skipped. Even if the "HEAD" request won't get any response content, response headers leak ("Content-Length", "Location", custom headers). Also, the controller still executes and any side effects (DB writes, state changes) occur. Resolution When adding "GET" in the "methods" option of these attributes, Symfony now also include the "HEAD" method automatically. The patch for this issue is available "here" (symfony/symfony@fa8d5c6) for branch 7.4. Credits Symfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and Alexandre Daubois for fixing it.
Publish Date: 2026-05-31
URL: CVE-2026-45075
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-05-27
Fix Resolution: https://github.com/symfony/symfony.git - v5.4.52,https://github.com/symfony/symfony.git - v8.0.11,https://github.com/symfony/symfony.git - v7.4.11,https://github.com/symfony/symfony.git - v6.4.39
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Vulnerabilities
*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
Vulnerable Library - symfony/http-kernel-v8.0.2
Provides a structured process for converting a Request into a Response
Library home page: https://api.github.com/repos/symfony/http-kernel/zipball/bcef77a3c8ae8934ce7067172e2a1a6491a62a7d
Dependency Hierarchy:
Found in base branch: develop
Vulnerability Details
Description Symfony's "#[IsGranted('...')]", "#[IsSignatureValid]", and "#[IsCsrfTokenValid(...)]" attributes allow you to define a "methods: [...]" argument to only enforce these checks for the listed HTTP methods and skip them otherwise. E.g. an attribute defining "methods: ['GET']" would be ignored for a "HEAD" request. On the other hand, Symfony's router (and HTTP semantics generally) serves "HEAD" requests using the "GET" handler. Therefore, a controller protected by e.g. "#[IsGranted('ROLE_ADMIN', methods: ['GET'])]" can be reached via "HEAD" with the authorization check silently skipped. Even if the "HEAD" request won't get any response content, response headers leak ("Content-Length", "Location", custom headers). Also, the controller still executes and any side effects (DB writes, state changes) occur. Resolution When adding "GET" in the "methods" option of these attributes, Symfony now also include the "HEAD" method automatically. The patch for this issue is available "here" (symfony/symfony@fa8d5c6) for branch 7.4. Credits Symfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and Alexandre Daubois for fixing it.
Publish Date: 2026-05-31
URL: CVE-2026-45075
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-05-27
Fix Resolution: https://github.com/symfony/symfony.git - v5.4.52,https://github.com/symfony/symfony.git - v8.0.11,https://github.com/symfony/symfony.git - v7.4.11,https://github.com/symfony/symfony.git - v6.4.39
Step up your Open Source Security Game with Mend here