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Fencer Vulns
high 7.3

CVE-2024-50340 in the critical feed json

Ability to change environment from query in symfony/runtime

published 2024-11-06 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-3330 , GHSA-x8vp-gf4q-mw5j

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
61.8%
EPSS 61.8% chance of exploitation in 30 days, percentile 99.1%
public exploits
0
none known, plus a Nuclei check

Summary

symfony/runtime is a module for the Symphony PHP framework which enables decoupling PHP applications from global state. When the `register_argv_argc` php directive is set to `on` , and users call any URL with a special crafted query string, they are able to change the environment or debug mode used by the kernel when handling the request. As of versions 5.4.46, 6.4.14, and 7.1.7 the `SymfonyRuntime` now ignores the `argv` values for non-SAPI PHP runtimes. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Patch / fix

  • packagist symfony/runtime 5.4.46, 6.4.14, 7.1.7
  • packagist symfony/symfony 5.4.46, 6.4.14, 7.1.7
  • sensiolabs symfony 5.4.46, 6.4.14, 7.1.7
  • symfony Debian 12 5.4.53+dfsg-0+deb12u1
  • symfony Debian 13 6.4.41+dfsg-0+deb13u1
  • symfony Debian 14 6.4.14+dfsg-1

debian advisories DEBIAN-CVE-2024-50340

  • 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-2024-50340

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

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

61.83% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Symfony Profiler - Remote Access via Injected Arguments nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
GitHub 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected packages

ecosystem package affected fixed in
packagist symfony/runtime
>=5.3.0, <5.4.46
>=6.0.0, <6.4.14
>=7.0.0, <7.1.7
5.4.46
6.4.14
7.1.7
packagist symfony/symfony
>=5.3.0, <5.4.46
>=6.0.0, <6.4.14
>=7.0.0, <7.1.7
5.4.46
6.4.14
7.1.7

Affected products

  • symfony symfony
  • sensiolabs symfony

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
  • CWE-20 Improper Input Validation

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.