CVE-2024-50340

highpriority · track · 32EPSS 0.636 · 99 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

63.6% (99th) EPSS

CVSS 7.3 · high

Is it mine?

14 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.3highAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · security-advisories@github.comexploitability 3.9 · impact 3.4

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · OSV

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-74USCWE-74USCWE-74US

exploits (1)

Public proof-of-concept and weaponised exploit code.

Nyamort/CVE-2024-50340Nyamort/CVE-2024-50340PoC · poc_in_github

affected products (14)

Products and version ranges known to be affected.

symfony symfony≤ < 5.4.46enisa_euvdEU
symfony symfony6.0.0, → 6.4.14enisa_euvdEU
symfony symfony7.0.0, → 7.1.7enisa_euvdEU
SensioLabs, symfony community Symfony≤ 5.4.46fstec_bduRU
SensioLabs, symfony community Symfony6 → 6.4.14fstec_bduRU
SensioLabs, symfony community Symfony7 → 7.1.7fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.8fstec_bduRU
Packagist symfony/runtime5.3.0 → 5.4.46osvUSpkg:composer/symfony/runtime
Packagist symfony/runtime6.0.0 → 6.4.14osvUSpkg:composer/symfony/runtime
Packagist symfony/runtime7.0.0 → 7.1.7osvUSpkg:composer/symfony/runtime
Packagist symfony/symfony5.3.0 → 5.4.46osvUSpkg:composer/symfony/symfony
Packagist symfony/symfony6.0.0 → 6.4.14osvUSpkg:composer/symfony/symfony
Packagist symfony/symfony7.0.0 → 7.1.7osvUSpkg:composer/symfony/symfony

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-x8vp-gf4q-mw5jSymfony allows changing the environment through a query2024-11-06ghsa · osvUS
### Description When the `register_argc_argv` 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. ### Resolution The `SymfonyRuntime` now ignores the `argv` values for non-cli SAPIs PHP runtimes The patch for this issue is available [here](https://github.com/symfony/symfony/commit/a77b308c3f179ed7c8a8bc295f82b2d6ee3493fa) for branch 5.4. ### Credits We would like to thank Vladimir Dusheyko for reporting the issue and Wouter de Jong for providing the fix.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv NVD CVE.org MITRE

published 2024-11-06modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

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