9.8

CVE-2026-47767: sensiolabs symfony Interpretation Conflict

CVSS: 9.8v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2026-47767DEBIAN-CVE-2026-47767
Published 14-07-2026Last modified 16-07-2026
Open JSON

Vulnerability summary

CVE-2026-47767 is a critical (CVSS 9.8) Interpretation Conflict vulnerability in sensiolabs symfony. EPSS estimates a 0.72% chance of exploitation in the next 30 days, higher than 53.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-07-2026
    PublishedVulnerability first disclosed.
  2. 16-07-2026
    Last modifiedVulnerability information updated.

Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.46 until 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the CVE-2024-50340 fix gated runtime argv parsing on empty($_GET), but parse_str() and the web SAPI can disagree, allowing a crafted query string to leave $_GET empty while $_SERVER['argv'] still carries attacker-controlled --env or --no-debug flags that change APP_ENV or APP_DEBUG. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.72%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.72% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.72%

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

Symfony2 products
  • runtime≥ 5.4.46, < 5.4.52 | ≥ 6.4.14, < 6.4.40 | ≥ 7.1.7, < 7.4.12 | ≥ 8.0.0-BETA1, < 8.0.12
  • symfony≥ 5.4.46, < 5.4.52 | ≥ 6.4.14, < 6.4.40 | ≥ 7.1.7, < 7.4.12 | ≥ 8.0.0-BETA1, < 8.0.12
Debian1 product
  • symfony< 5.4.52+dfsg-0+deb12u1 | < 6.4.41+dfsg-0+deb13u1 | < 7.4.12+dfsg-1
Sensiolabs1 product
  • symfony≥ 5.4.46, < 5.4.52 | ≥ 6.4.14, < 6.4.40 | ≥ 7.1.7, < 7.4.12 | ≥ 8.0.0, < 8.0.12
Ubuntu1 product
  • symfonyAll versions (No fix recorded)

4 vendors · 5 products

References

9 links