CVE-2026-45074

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Source
https://cve.org/CVERecord?id=CVE-2026-45074
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45074.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45074
Aliases
Downstream
Published
2026-07-14T17:49:24.895Z
Modified
2026-07-17T03:46:29.104581586Z
Severity
  • 7.6 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Symfony: Cas2Handler Derives CAS service URL from Client Host Header → Cross-Service Ticket Replay
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-290"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45074.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/symfony/security-http

Affected ranges

Type
GIT
Repo
https://github.com/symfony/security-http
Events
Introduced
e8637cdef1b58a27878694e1b79ef8bf1b924b4c
Fixed
1fc7ca636cbd2cad29b42cc13c9fd0c681c6efee
Introduced
bea6dc79db4d95c34b77ec27273d812aa64d65be
Fixed
d776945b2dc41c0e609c56c1ef69863ab56856ed
Database specific 
{
    "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "7.1.0"
        },
        {
            "fixed": "7.4.12"
        },
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.12"
        }
    ],
    "source": "CPE_RANGE"
}
Type
GIT
Repo
https://github.com/symfony/symfony
Events
Introduced
08964d6da4787cd5f19e60f8aaf41ffd26d6c8c3
Fixed
275f5cbccbcc50205206f05e599c4f57009aadb8
Introduced
2e913a829cfbbf9cb38b321bdff1806b44b192eb
Fixed
06d3b2c9a8aeb5d8493738cc51e24f6a1215827c
Fixed
5ba145dba702404801bdf9e7e8d6df170060d541
Database specific 
{
    "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "7.1.0"
        },
        {
            "fixed": "7.4.12"
        },
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.12"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v7.*
v7.1.0
v7.1.0-RC1
v7.2.0
v7.2.0-BETA1
v7.2.0-BETA2
v7.2.0-RC1
v7.2.1
v7.3.0
v7.3.0-BETA1
v7.3.0-BETA2
v7.3.0-RC1
v7.4.0
v7.4.0-BETA1
v7.4.0-RC1
v7.4.0-RC2
v7.4.1
v7.4.11
v7.4.3
v7.4.4
v7.4.6
v7.4.8
v7.4.9
v8.*
v8.0.0
v8.0.1
v8.0.10
v8.0.11
v8.0.2
v8.0.3
v8.0.4
v8.0.5
v8.0.6
v8.0.7
v8.0.8
v8.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45074.json"