8.7

CVE-2026-48489: sensiolabs symfony Incorrect Authorization

CVSS: 8.7v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-48489DEBIAN-CVE-2026-48489
Published 14-07-2026Last modified 16-07-2026
Open JSON

Vulnerability summary

CVE-2026-48489 is a high (CVSS 8.7) Incorrect Authorization vulnerability in sensiolabs symfony. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.5% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v4.0 (CVE.org)
EPSS score
0.60%
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 5.4.53, 6.4.41, 7.4.13, and 8.0.13, DefaultAuthenticationFailureHandler honored the request-supplied _failure_path parameter when failure_forward: true was enabled, allowing an unauthenticated failing login request to dispatch a subrequest to access_control-protected GET routes that skipped firewall listeners. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

0.00 pp

From 0.60% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.60%

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
  • security-http< 5.4.53 | ≥ 6.0.0-BETA1, < 6.4.41 | ≥ 7.0.0-BETA1, < 7.4.13 | ≥ 8.0.0-BETA1, < 8.0.13
  • symfony< 5.4.53 | ≥ 6.0.0-BETA1, < 6.4.41 | ≥ 7.0.0-BETA1, < 7.4.13 | ≥ 8.0.0-BETA1, < 8.0.13
Debian1 product
  • symfony< 5.4.53+dfsg-0+deb12u1 | < 6.4.41+dfsg-0+deb13u1 | < 7.4.13+dfsg-1
Sensiolabs1 product
  • symfony< 5.4.53 | ≥ 6.0.0, < 6.4.41 | ≥ 7.0.0, < 7.4.13 | ≥ 8.0.0, < 8.0.13
Ubuntu1 product
  • symfonyAll versions (No fix recorded)

4 vendors · 5 products

References

9 links