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CVE-2026-45074

HIGH
7.6
CVSS 4.0
Description
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 fixed in versions 7.4.12 and 8.0.12.

Metadata

CVE ID
CVE-2026-45074
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-08 18:45 UTC
Published
2026-07-14 17:49 UTC
Last updated
2026-07-14 18:24 UTC
Primary CWE
CWE-290
CWE-290: Authentication Bypass by Spoofing
Vendor / Product
symfony / symfony
Sources
cve.org  ·  NVD

Severity & Metrics

7.6 HIGH CVSS 4.0
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
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
total
Affected products (2)
VendorProductPlatformVersions
symfony security-http — >= 7.1.0-BETA1, < 7.4.12, >= 8.0.0-BETA1, < 8.0.12
symfony symfony — >= 7.1.0-BETA1, < 7.4.12, >= 8.0.0-BETA1, < 8.0.12
Weakness (CWE)
CWESourceDescription
CWE-290 cna CWE-290: Authentication Bypass by Spoofing
CVSS scores (1)
ScoreSeverityVersionSourceVector
7.6 HIGH 4.0 cna 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
References (4)
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