CVE-2024-50340

Ability to change environment from query in symfony/runtime

HIGH

7.3

CVSS Score

Published: November 6, 2024 at 09:09 PM UTC

Updated: June 17, 2026 at 08:04 AM UTC

2 products affected across 2 vendorsSymfonySymfony

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Severity

HIGH7.3

Exploit prediction

EPSS 64%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Symfony · Sensiolabsdrupal

60%

v < 5.4.466.0.0 ≤ v < 6.4.147.0.0 ≤ v < 7.1.76.0.0 7.0.0

Affected range stops below 5.4.46, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.4.14, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.1.7, so it looks safe — our inference, not a vendor statement

Symfony · Symfonycomposer

60%

v < 5.4.46v < 6.4.14v < 7.1.7

Affected range stops below 5.4.46, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.4.14, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.1.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISC

Source: [email protected]

https://github.com/symfony/symfony/commit/a77b308c3f179ed7c8a8bc295f82b2d6ee3493fa

x_refsource_CONFIRM

Source: [email protected]

https://github.com/symfony/symfony/security/advisories/GHSA-x8vp-gf4q-mw5j

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: LOW
Availability: LOW

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-74

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