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

CVE-2026-46640Symfony · Twig

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 74% of all CVEs

Weaknesses (CWE)

CWE-94Improper Control of Generation of Code ('Code Injection')

Description

Twig is a template language for PHP. From 3.15.0 until 3.26.0, _self.(<string>) and import-alias dynamic attribute syntax can concatenate an attacker-controlled string into a MacroReferenceExpression name without identifier validation, causing raw PHP to be emitted into the generated template source and executed at template-load time. This issue is fixed in version 3.26.0.

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-2026-46640

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Symfony Twig"

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

Shodan · banner/body mention

http.html:"Twig"

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

More intel sources (5)

Shodan report

vuln:CVE-2026-46640