CVE•Published 2026-07-14•Modified 2026-07-16•1 article on news•4 live references•NVD data
CVE-2026-48736Sensiolabs · Symfony
Vulnerability data via NVD (ingested)
CVSS v3.1
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS percentile
—
Weaknesses (CWE)
Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.0 to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, NoPrivateNetworkHttpClient and IpUtils::PRIVATE_SUBNETS omitted IPv6 transition prefixes such as 6to4, NAT64, Teredo, and IPv4-compatible IPv6, allowing attacker-supplied URLs to represent private IPv4 targets in forms that IpUtils::isPrivateIp() did not block. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.
Timeline
Published 2026-07-14
Modified 2026-07-16
External references
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-2026-48736Hosts 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-2026-48736Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-48736Censys host search filtered to this CVE id.
grep.app
CVE-2026-48736Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-48736GitHub code search for direct mentions.
Google dork
"CVE-2026-48736" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.