3.1

CVE-2024-50343: symfony Improper Input Validation

CVSS: 3.1v3.1LowDeferred
AliasesUBUNTU-CVE-2024-50343DEBIAN-CVE-2024-50343
Published 06-11-2024Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2024-50343 is a low (CVSS 3.1) Improper Input Validation vulnerability in symfony. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.2% of scored vulnerabilities.

Overall risk
12/100
0100
Low · default modelHow is this calculated?
CVSS score
3.1/10
010
Low · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 1
DLA-4200-1DSA-5809-1USN-7272-1

Timeline

  1. 06-11-2024
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

symfony/validator is a module for the Symphony PHP framework which provides tools to validate values. It is possible to trick a `Validator` configured with a regular expression using the `$` metacharacters, with an input ending with `\n`. Symfony as of versions 5.4.43, 6.4.11, and 7.1.4 now uses the `D` regex modifier to match the entire input. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

0.00 pp

From 0.46% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.46%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • symfony< 5.4.23+dfsg-1+deb12u3 | < 6.4.11+dfsg-1
Symfony1 product
  • symfony< 5.4.43 | ≥ 6.0.0, < 6.4.11 | ≥ 7.0.0, < 7.1.4
Ubuntu1 product
  • symfonyAll versions (No fix recorded) | < 4.3.8+dfsg-1ubuntu1+esm2 | < 5.4.4+dfsg-1ubuntu8+esm1 | < 6.4.5+dfsg-3ubuntu3+esm1

3 vendors · 3 products

References

7 links