8.3

CVE-2026-45075: sensiolabs symfony Incorrect Authorization

CVSS: 8.3v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-45075DEBIAN-CVE-2026-45075
Published 14-07-2026Last modified 16-07-2026
Open JSON

Vulnerability summary

CVE-2026-45075 is a high (CVSS 8.3) Incorrect Authorization vulnerability in sensiolabs symfony. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.8% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.3/10
010
High · v4.0 (CVE.org)
EPSS score
0.43%
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. Prior to 7.4.12 and 8.0.12, method-scoped #[IsGranted], #[IsSignatureValid], and #[IsCsrfTokenValid] attributes can be configured for GET only, but Symfony routes HEAD requests to the GET handler while the attribute check is skipped, allowing protected controllers to execute and leak headers or perform side effects. This issue is fixed in versions 7.4.12 and 8.0.12.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

0.00 pp

From 0.43% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.43%

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

Symfony3 products
  • http-kernel≥ 7.4.0-BETA1, < 7.4.12 | ≥ 8.0.0-BETA1, < 8.0.12
  • security-http≥ 7.4.0-BETA1, < 7.4.12 | ≥ 8.0.0-BETA1, < 8.0.12
  • symfony≥ 7.4.0-BETA1, < 7.4.12 | ≥ 8.0.0-BETA1, < 8.0.12
Debian1 product
  • symfony< 7.4.12+dfsg-1
Sensiolabs1 product
  • symfony≥ 7.4.0, < 7.4.12 | ≥ 8.0.0, < 8.0.12
Ubuntu1 product
  • symfonyAll versions (No fix recorded)

4 vendors · 6 products

References

7 links