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TI-2026-32923 Aliases CVE-2026-45075GHSA-6439-2f28-8p8q

Symfony: HEAD Request Bypasses methods: ['GET'] Filter in #[IsGranted] / #[IsSignatureValid] / #[IsCsrfTokenValid]

Priority MEDIUM 42CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00429 37th percentileScored 2026-11-07
Fix Fixed symfony (symfony): 7.4.12, 8.0.12http-kernel (symfony): 7.4.12, 8.0.12+4 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
symfonysymfony7.4.0-BETA1 to before 7.4.12; 8.0.0-BETA1 to before 8.0.127.4.12, 8.0.12Patch availableCNA
symfonyhttp-kernel7.4.0-BETA1 to before 7.4.12; 8.0.0-BETA1 to before 8.0.127.4.12, 8.0.12Patch availableCNA
symfonysecurity-http7.4.0-BETA1 to before 7.4.12; 8.0.0-BETA1 to before 8.0.127.4.12, 8.0.12Patch availableCNA
—symfony/http-kernel (Packagist)7.4.0 to before 7.4.127.4.12Patch availableGHSA-6439-2f28-8p8q
—symfony/http-kernel (Packagist)8.0.0 to before 8.0.128.0.12Patch availableGHSA-6439-2f28-8p8q
—symfony/security-http (Packagist)7.4.0 to before 7.4.127.4.12Patch availableGHSA-6439-2f28-8p8q
—symfony/security-http (Packagist)8.0.0 to before 8.0.128.0.12Patch availableGHSA-6439-2f28-8p8q
—symfony/symfony (Packagist)7.4.0 to before 7.4.127.4.12Patch availableGHSA-6439-2f28-8p8q
—symfony/symfony (Packagist)8.0.0 to before 8.0.128.0.12Patch availableGHSA-6439-2f28-8p8q
  • symfony Vendorsymfony Affected 7.4.0-BETA1 to before 7.4.12; 8.0.0-BETA1 to before 8.0.12 Fixed in 7.4.12, 8.0.12 Patch available CNA
  • http-kernel Vendorsymfony Affected 7.4.0-BETA1 to before 7.4.12; 8.0.0-BETA1 to before 8.0.12 Fixed in 7.4.12, 8.0.12 Patch available CNA
  • security-http Vendorsymfony Affected 7.4.0-BETA1 to before 7.4.12; 8.0.0-BETA1 to before 8.0.12 Fixed in 7.4.12, 8.0.12 Patch available CNA
  • symfony/http-kernel (Packagist) Vendor— Affected 7.4.0 to before 7.4.12 Fixed in 7.4.12 Patch available GHSA-6439-2f28-8p8q
  • symfony/http-kernel (Packagist) Vendor— Affected 8.0.0 to before 8.0.12 Fixed in 8.0.12 Patch available GHSA-6439-2f28-8p8q
  • symfony/security-http (Packagist) Vendor— Affected 7.4.0 to before 7.4.12 Fixed in 7.4.12 Patch available GHSA-6439-2f28-8p8q
  • symfony/security-http (Packagist) Vendor— Affected 8.0.0 to before 8.0.12 Fixed in 8.0.12 Patch available GHSA-6439-2f28-8p8q
  • symfony/symfony (Packagist) Vendor— Affected 7.4.0 to before 7.4.12 Fixed in 7.4.12 Patch available GHSA-6439-2f28-8p8q
  • symfony/symfony (Packagist) Vendor— Affected 8.0.0 to before 8.0.12 Fixed in 8.0.12 Patch available GHSA-6439-2f28-8p8q

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*7.4.0 to before 7.4.12; 8.0.0 to before 8.0.12Vulnerablesensiolabs
  • cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* Versions 7.4.0 to before 7.4.12; 8.0.0 to before 8.0.12 Vulnerable ·sensiolabs

Remediation

  • Fix · CNA symfony (symfony) Fixed in 7.4.12, 8.0.12
  • Fix · CNA http-kernel (symfony) Fixed in 7.4.12, 8.0.12
  • Fix · CNA security-http (symfony) Fixed in 7.4.12, 8.0.12
  • Fix · GHSA-6439-2f28-8p8q symfony/http-kernel (Packagist) Fixed in 7.4.12 Advisory →
  • Fix · GHSA-6439-2f28-8p8q symfony/http-kernel (Packagist) Fixed in 8.0.12 Advisory →
  • Fix · GHSA-6439-2f28-8p8q symfony/security-http (Packagist) Fixed in 7.4.12 Advisory →
  • Fix · GHSA-6439-2f28-8p8q symfony/security-http (Packagist) Fixed in 8.0.12 Advisory →
  • Fix · GHSA-6439-2f28-8p8q symfony/symfony (Packagist) Fixed in 7.4.12 Advisory →
  • Fix · GHSA-6439-2f28-8p8q symfony/symfony (Packagist) Fixed in 8.0.12 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-45075
  2. 2026-10-03 Alias added: GHSA-6439-2f28-8p8q

References

  • TI-2024-33775 Ability to change environment from query in symfony/runtime CVSS 3.1HIGH 7.3
  • TI-2026-34283 Twig: The `spaceless` filter implicitly marks its output as safe CVSS 4.0MEDIUM 5.1
  • TI-2022-07667 Code injection in Twig CVSS 3.1CRITICAL 9.8
  • TI-2018-10028 Twig before 2.4.4 allows Server-Side Template Injection (SSTI) via the search search_key… CVSS 3.0CRITICAL 9.8
  • TI-2026-35851 Incorrect authorization in symfony CVSS 4.0HIGH 8.7
  • TI-2026-35264 Improper input validation in symfony CVSS 4.0HIGH 8.3
See all 94 →

Sources