CVE record · CVE-2026-123119

Symfony: NoPrivateNetworkHttpClient Does Not Pin the Checked IP of Cached Hosts, Letting DNS Rebinding Enumerate Internal Ports (Incomplete Fix for CVE-2024-50342)

CVSS 2.3 Low

Published by the CVE Program (CNA: Checkmarx) at 5 Nov 2026, 12:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
sensiolabs	symfony Package name: symfony/http-client https://packagist.org/packages/symfony/http-client	affected before 5.4.56 git affected 6.0.0 to before 6.4.50 git affected 7.0.0 to before 7.4.23 git affected 8.0.0 to before 8.1.11 git Other versions: unaffected

Identifiers: CVE-2026-123119
CNA: Checkmarx
Weakness (CWE): CWE-367 · CWE-918
Tags: sensiolabs symfony
Race condition
Server-side request forgery (SSRF)
Published: 5 Nov 2026
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
2.3	Low	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N	CNA (Checkmarx)

CISA KEV Not listed.
EPSS No score.

Timeline

5 Nov 2026, 12:57 UTC Confirmed by the CVE List
5 Nov 2026, 13:09 UTC First seen by agentprime
5 Nov 2026, 13:17 UTC Confirmed by NVD

Sources

References from the CNA

github.com/symfony/symfony/security/advisories/GHSA-c7hm-wqwp-f9v8 third-party-advisory
github.com/symfony/symfony/commit/ab084826b2b5db8d0b91af635fe2b5e1c4f699f9 patch

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.