8.2

CVE-2026-45756: sensiolabs symfony Uncontrolled Resource Consumption

CVSS: 8.2v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-45756DEBIAN-CVE-2026-45756
Published 14-07-2026Last modified 21-07-2026
Open JSON

Vulnerability summary

CVE-2026-45756 is a high (CVSS 8.2) Uncontrolled Resource Consumption vulnerability in sensiolabs symfony. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.2% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v4.0 (CVE.org)
EPSS score
0.63%
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. 21-07-2026
    Last modifiedVulnerability information updated.

Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.3.0-BETA1 until 7.4.12 and 8.0.12, the JsonPath component compiles attacker-controlled match() and search() filter patterns directly into preg_match() without a length cap, i-regexp restriction, or bounded backtracking, allowing catastrophic-backtracking expressions to pin worker CPU and cause denial of service. This issue is fixed in versions 7.4.12 and 8.0.12.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.63% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.63%

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
  • json-path≥ 7.3.0-BETA1, < 7.4.12 | ≥ 8.0.0-BETA1, < 8.0.12
  • symfony≥ 7.3.0-BETA1, < 7.4.12 | ≥ 8.0.0-BETA1, < 8.0.12
Debian1 product
  • symfony< 7.4.12+dfsg-1
Sensiolabs1 product
  • symfony≥ 7.3.0, < 7.4.12 | ≥ 8.0.0, < 8.0.12
Ubuntu1 product
  • symfonyAll versions (No fix recorded)

4 vendors · 5 products

References

8 links