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CVE-2026-45074

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.1.0 until 7.4.12 and 8.0.12, Cas2Handler builds the CAS service parameter from Request::getSchemeAndHttpHost(), which reflects an attacker-controlled Host header when framework.trusted_hosts is not configured; an attacker controlling another application registered with the same CAS server can replay a victim ticket against the Symfony application and authenticate as the victim. This issue is
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:38720a54337715a058b2cf968310f43c7ea6f0eb97008a8108267c17abda0184
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"symfony","vendor":"symfony","versions":[{"status":"affected","version":">= 7.1.0-BETA1, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/affected/0

{"product":"security-http","vendor":"symfony","versions":[{"status":"affected","version":">= 7.1.0-BETA1, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"symfony","vendor":"symfony","versions":[{"status":"affected","version":">= 7.1.0-BETA1, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/affected/0
{"product":"security-http","vendor":"symfony","versions":[{"status":"affected","version":">= 7.1.0-BETA1, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.6,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-290","description":"CWE-290: Authentication Bypass by Spoofing","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/symfony/symfony/commit/5ba145dba702404801bdf9e7e8d6df170060d541","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/commit/5ba145dba702404801bdf9e7e8d6df170060d541"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/references/1
{"name":"https://github.com/symfony/symfony/releases/tag/v7.4.12","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/releases/tag/v7.4.12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/references/2
{"name":"https://github.com/symfony/symfony/releases/tag/v8.0.12","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/releases/tag/v8.0.12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/references/3
{"name":"https://github.com/symfony/symfony/security/advisories/GHSA-j8gj-9rm5-4xhx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/symfony/symfony/security/advisories/GHSA-j8gj-9rm5-4xhx"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4ff321cc67bdbc60b408334454e44bd8aa65a59482e21863d555b27611e8656a · sha256:bdfdacbf71c07a1d… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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