symfony/monolog-bundle-v4.0.1: 2 vulnerabilities (highest severity is: 8.6)

[mend-bolt-for-github]

Vulnerable Library - symfony/monolog-bundle-v4.0.1

Found in HEAD commit: 45fd85ad85cccc095b1d85471b9b73160b3006a7

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (symfony/monolog-bundle-v4.0.1 version)	Remediation Possible**
CVE-2026-45077	High	8.6	symfony/monolog-bridge-v8.0.0	Transitive	N/A*	❌
CVE-2026-45075	High	8.2	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-2026-45077

Vulnerable Library - symfony/monolog-bridge-v8.0.0

Provides integration for Monolog with various Symfony components

Library home page: https://api.github.com/repos/symfony/monolog-bridge/zipball/6dd0793eb9ebcecb0b909a5571ac6e82867d7b20

Dependency Hierarchy:

• symfony/monolog-bundle-v4.0.1 (Root Library)
  • ❌ symfony/monolog-bridge-v8.0.0 (Vulnerable Library)

Found in HEAD commit: 45fd85ad85cccc095b1d85471b9b73160b3006a7

Found in base branch: develop

Vulnerability Details

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the server:log listener (Symfony\Bridge\Monolog\Command\ServerLogCommand) binds to 0.0.0.0:9911 by default and processes each received frame with unserialize(base64_decode($message)) without authentication, integrity checks, or an allowed_classes allowlist, allowing any reachable host to submit attacker-chosen serialized PHP payloads that can crash the listener and may trigger object-injection gadget effects. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.

Publish Date: 2026-07-14

URL: CVE-2026-45077

CVSS 3 Score Details (8.6)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: High

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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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/monolog-bundle-v4.0.1 (Root Library)
  • ❌ symfony/http-kernel-v8.0.2 (Vulnerable Library)

Found in HEAD commit: 45fd85ad85cccc095b1d85471b9b73160b3006a7

Found in base branch: develop

Vulnerability Details

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.12 and 8.0.12, method-scoped #[IsGranted], #[IsSignatureValid], and #[IsCsrfTokenValid] attributes can be configured for GET only, but Symfony routes HEAD requests to the GET handler while the attribute check is skipped, allowing protected controllers to execute and leak headers or perform side effects. This issue is fixed in versions 7.4.12 and 8.0.12.

Publish Date: 2026-07-14

URL: CVE-2026-45075

CVSS 3 Score Details (8.2)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • 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