CVE•Published 2026-07-14•Modified 2026-07-15•1 article on news•4 live references•NVD data

CVE-2026-45074Sensiolabs · Symfony

Vulnerability data via NVD (ingested)

CVSS v3.1

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS percentile

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Weaknesses (CWE)

CWE-290Authentication Bypass by Spoofing

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.

Timeline

Published 2026-07-14

Modified 2026-07-15

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2026-45074

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Sensiolabs Symfony"

All exposed Sensiolabs Symfony instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Symfony"

HTTP body or banner mentions "Symfony" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-45074