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Fencer Vulns
high 8.2

CVE-2026-45075 json

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

published 2026-05-27 5 mo ago modified 2026-09-10 1 mo ago also GHSA-6439-2f28-8p8q , EUVD-2026-44350

cvss
8.2
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

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.

Patch / fix

  • packagist symfony/http-kernel 7.4.12, 8.0.12
  • packagist symfony/security-http 7.4.12, 8.0.12
  • packagist symfony/symfony 7.4.12, 8.0.12
  • sensiolabs symfony 7.4.12, 8.0.12
  • symfony Debian 14 7.4.12+dfsg-1

debian advisories DEBIAN-CVE-2026-45075

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
3 mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
CNA 4.0 8.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Affected packages

ecosystem package affected fixed in
packagist symfony/http-kernel
>=7.4.0, <7.4.12
>=8.0.0, <8.0.12
7.4.12
8.0.12
packagist symfony/security-http
>=7.4.0, <7.4.12
>=8.0.0, <8.0.12
7.4.12
8.0.12
packagist symfony/symfony
>=7.4.0, <7.4.12
>=8.0.0, <8.0.12
7.4.12
8.0.12

Affected products

  • symfony symfony
  • symfony http-kernel
  • symfony security-http

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.