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Fencer Vulns
low 3.1

CVE-2024-50342 json

Internal address and port enumeration allowed by NoPrivateNetworkHttpClient in symfony/http-client

published 2024-11-06 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-3230 , GHSA-9c3x-r3wp-mgxm

cvss
3.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

symfony/http-client is a module for the Symphony PHP framework which provides powerful methods to fetch HTTP resources synchronously or asynchronously. When using the `NoPrivateNetworkHttpClient`, some internal information is still leaking during host resolution, which leads to possible IP/port enumeration. As of versions 5.4.46, 6.4.14, and 7.1.7 the `NoPrivateNetworkHttpClient` now filters blocked IPs earlier to prevent such leaks. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Patch / fix

  • packagist symfony/http-client 5.4.47, 6.4.15, 7.1.8
  • packagist symfony/symfony 5.4.47, 6.4.15, 7.1.8
  • sensiolabs symfony 5.4.46, 6.4.14, 7.1.7
  • symfony Debian 12 5.4.23+dfsg-1+deb12u3
  • symfony Debian 14, Debian 13 6.4.15+dfsg-1

debian advisories DEBIAN-CVE-2024-50342

  • symfony Ubuntu Pro 22.04 LTS 5.4.4+dfsg-1ubuntu8+esm1
  • symfony Ubuntu Pro 24.04 LTS 6.4.5+dfsg-3ubuntu3+esm1

ubuntu advisories UBUNTU-CVE-2024-50342

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-50342 updated

php-symfony-http-client: Internal address and port enumeration allowed by NoPrivateNetworkHttpClient in symfony/http-client

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
GitHub 3.1 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist symfony/http-client
>=4.3.0, <5.4.47
>=6.0.0, <6.4.15
>=7.0.0, <7.1.8
5.4.47
6.4.15
7.1.8
packagist symfony/symfony
>=4.3.0, <5.4.47
>=6.0.0, <6.4.15
>=7.0.0, <7.1.8
5.4.47
6.4.15
7.1.8

Affected products

  • symfony symfony

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.