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TI-2016-02159 Aliases CVE-2016-2403GHSA-wvj5-r78r-hhfq

Symfony before 2.8.6 and 3.x before 3.0.6 allows remote attackers to bypass…

Priority MEDIUM 49CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

Symfony before 2.8.6 and 3.x before 3.0.6 allows remote attackers to bypass authentication by logging in with an empty password and valid username, which triggers an unauthenticated bind.

Why it matters now

EPSS 0.04287 91st percentileScored 2026-11-07
Fix Fixed symfony/security-core (Packagist): 2.8.6, 3.0.6symfony/security (Packagist): 2.8.6, 3.0.6+1 more product

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—symfony/security-core (Packagist)2.8.0 to before 2.8.62.8.6Patch availableGHSA-wvj5-r78r-hhfq
—symfony/security-core (Packagist)3.0.0 to before 3.0.63.0.6Patch availableGHSA-wvj5-r78r-hhfq
—symfony/security (Packagist)2.8.0 to before 2.8.62.8.6Patch availableGHSA-wvj5-r78r-hhfq
—symfony/security (Packagist)3.0.0 to before 3.0.63.0.6Patch availableGHSA-wvj5-r78r-hhfq
—symfony/symfony (Packagist)2.8.0 to before 2.8.62.8.6Patch availableGHSA-wvj5-r78r-hhfq
—symfony/symfony (Packagist)3.0.0 to before 3.0.63.0.6Patch availableGHSA-wvj5-r78r-hhfq
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • symfony/security-core (Packagist) Vendor— Affected 2.8.0 to before 2.8.6 Fixed in 2.8.6 Patch available GHSA-wvj5-r78r-hhfq
  • symfony/security-core (Packagist) Vendor— Affected 3.0.0 to before 3.0.6 Fixed in 3.0.6 Patch available GHSA-wvj5-r78r-hhfq
  • symfony/security (Packagist) Vendor— Affected 2.8.0 to before 2.8.6 Fixed in 2.8.6 Patch available GHSA-wvj5-r78r-hhfq
  • symfony/security (Packagist) Vendor— Affected 3.0.0 to before 3.0.6 Fixed in 3.0.6 Patch available GHSA-wvj5-r78r-hhfq
  • symfony/symfony (Packagist) Vendor— Affected 2.8.0 to before 2.8.6 Fixed in 2.8.6 Patch available GHSA-wvj5-r78r-hhfq
  • symfony/symfony (Packagist) Vendor— Affected 3.0.0 to before 3.0.6 Fixed in 3.0.6 Patch available GHSA-wvj5-r78r-hhfq

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:sensiolabs:symfony:2.8.0:*:*:*:*:*:*:*2.8.0Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:2.8.1:*:*:*:*:*:*:*2.8.1Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:2.8.2:*:*:*:*:*:*:*2.8.2Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:2.8.3:*:*:*:*:*:*:*2.8.3Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:2.8.4:*:*:*:*:*:*:*2.8.4Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:2.8.5:*:*:*:*:*:*:*2.8.5Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:3.0.0:*:*:*:*:*:*:*3.0.0Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:3.0.1:*:*:*:*:*:*:*3.0.1Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:3.0.2:*:*:*:*:*:*:*3.0.2Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:3.0.3:*:*:*:*:*:*:*3.0.3Vulnerablesensiolabs
  • cpe:2.3:a:sensiolabs:symfony:2.8.0:*:*:*:*:*:*:* Versions 2.8.0 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:2.8.1:*:*:*:*:*:*:* Versions 2.8.1 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:2.8.2:*:*:*:*:*:*:* Versions 2.8.2 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:2.8.3:*:*:*:*:*:*:* Versions 2.8.3 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:2.8.4:*:*:*:*:*:*:* Versions 2.8.4 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:2.8.5:*:*:*:*:*:*:* Versions 2.8.5 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:3.0.2:*:*:*:*:*:*:* Versions 3.0.2 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:3.0.3:*:*:*:*:*:*:* Versions 3.0.3 Vulnerable ·sensiolabs
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:sensiolabs:symfony:3.0.4:*:*:*:*:*:*:*3.0.4Vulnerablesensiolabs
cpe:2.3:a:sensiolabs:symfony:3.0.5:*:*:*:*:*:*:*3.0.5Vulnerablesensiolabs
  • cpe:2.3:a:sensiolabs:symfony:3.0.4:*:*:*:*:*:*:* Versions 3.0.4 Vulnerable ·sensiolabs
  • cpe:2.3:a:sensiolabs:symfony:3.0.5:*:*:*:*:*:*:* Versions 3.0.5 Vulnerable ·sensiolabs

Remediation

  • Fix · GHSA-wvj5-r78r-hhfq symfony/security-core (Packagist) Fixed in 2.8.6 Advisory →
  • Fix · GHSA-wvj5-r78r-hhfq symfony/security-core (Packagist) Fixed in 3.0.6 Advisory →
  • Fix · GHSA-wvj5-r78r-hhfq symfony/security (Packagist) Fixed in 2.8.6 Advisory →
  • Fix · GHSA-wvj5-r78r-hhfq symfony/security (Packagist) Fixed in 3.0.6 Advisory →
  • Fix · GHSA-wvj5-r78r-hhfq symfony/symfony (Packagist) Fixed in 2.8.6 Advisory →
  • Fix · GHSA-wvj5-r78r-hhfq symfony/symfony (Packagist) Fixed in 3.0.6 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-2403
  2. 2026-10-03 Alias added: GHSA-wvj5-r78r-hhfq
  3. 2026-10-18 EPSS moved to the 90th–95th percentile

References

Advisory 3

Other 5

  • TI-2019-13616 An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0… CVSS 3.1CRITICAL 9.8
  • TI-2018-10604 An issue was discovered in Http Foundation in Symfony 2.7.0 through 2.7.48, 2.8.0 through… CVSS 3.1MEDIUM 6.5
  • TI-2019-08131 In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and… CVSS 3.1CRITICAL 9.8
  • TI-2019-08459 An issue was discovered in Symfony before 4.2.12 and 4.3.x before 4.3.8. CVSS 3.1CRITICAL 9.8
  • TI-2018-08136 An issue was discovered in the Ldap component in Symfony 2.8.x before 2.8.37, 3.3.x… CVSS 3.0CRITICAL 9.8
  • TI-2019-08134 In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and… CVSS 3.0CRITICAL 9.8
See all 88 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences