CVE•Published 2026-07-14•Modified 2026-07-16•1 article on news•4 live references•NVD data

CVE-2026-47767Sensiolabs · Symfony

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

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

EPSS percentile

Exploit Prediction Scoring System · top 75% of all CVEs

Weaknesses (CWE)

CWE-436Interpretation Conflict

Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.46 until 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the CVE-2024-50340 fix gated runtime argv parsing on empty($_GET), but parse_str() and the web SAPI can disagree, allowing a crafted query string to leave $_GET empty while $_SERVER['argv'] still carries attacker-controlled --env or --no-debug flags that change APP_ENV or APP_DEBUG. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.

Timeline

Published 2026-07-14

Modified 2026-07-16

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).

Shodan · vuln tag0 hosts

vuln:CVE-2026-47767

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-2026-47767