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Vulnerability details: VCID-su5t-5e4w-fbc2
Vulnerability ID VCID-su5t-5e4w-fbc2
Aliases CVE-2022-40482
Summary Observable Discrepancy The authentication method in Laravel 8.x through 9.x before 9.32.0 was discovered to be vulnerable to user enumeration via timeless timing attacks with HTTP/2 multiplexing. This is caused by the early return inside the hasValidCredentials method in the Illuminate\Auth\SessionGuard class when a user is found to not exist.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-203 Observable Discrepancy
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00481 https://api.first.org/data/v1/epss?cve=CVE-2022-40482
epss 0.00481 https://api.first.org/data/v1/epss?cve=CVE-2022-40482
cvssv3.1 5.3 https://ephort.dk/blog/laravel-timing-attack-vulnerability/
ssvc Track https://ephort.dk/blog/laravel-timing-attack-vulnerability/
cvssv3.1 5.3 https://github.com/ephort/laravel-user-enumeration-demo
ssvc Track https://github.com/ephort/laravel-user-enumeration-demo
cvssv3.1 5.3 https://github.com/laravel/framework/pull/44069
ssvc Track https://github.com/laravel/framework/pull/44069
cvssv3.1 5.3 https://github.com/laravel/framework/releases/tag/v9.32.0
ssvc Track https://github.com/laravel/framework/releases/tag/v9.32.0
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2022-40482
https://ephort.dk/blog/laravel-timing-attack-vulnerability/
https://github.com/ephort/laravel-user-enumeration-demo
https://github.com/laravel/framework/pull/44069
https://github.com/laravel/framework/releases/tag/v9.32.0
CVE-2022-40482 https://nvd.nist.gov/vuln/detail/CVE-2022-40482
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://ephort.dk/blog/laravel-timing-attack-vulnerability/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-02-03T20:49:48Z/ Found at https://ephort.dk/blog/laravel-timing-attack-vulnerability/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/ephort/laravel-user-enumeration-demo
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-02-03T20:49:48Z/ Found at https://github.com/ephort/laravel-user-enumeration-demo
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/laravel/framework/pull/44069
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-02-03T20:49:48Z/ Found at https://github.com/laravel/framework/pull/44069
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/laravel/framework/releases/tag/v9.32.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-02-03T20:49:48Z/ Found at https://github.com/laravel/framework/releases/tag/v9.32.0
Exploit Prediction Scoring System (EPSS)
Percentile 0.65477
EPSS Score 0.00481
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:44:39.715341+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/laravel/framework/CVE-2022-40482.yml 38.6.0