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CVE-2022-40482

19
FAUCET Score

CVE-2022-40482 is a medium-severity user enumeration vulnerability affecting Laravel Framework versions 8.x through 9.x before 9.32.0. This flaw allows attackers to determine valid usernames through timeless timing attacks leveraging HTTP/2 multiplexing, due to an early return in the authentication process when a user is not found. With a CVSS score of 5.3, it has a low impact on confidentiality and requires no user interaction or privileges to exploit. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.0.0, < 8.83.24CPE matchmatch criteria
cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:*
>= 9.0.0, < 9.32.0CPE matchmatch criteria
cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 35th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

ephort.dk / blog/laravel-timing-attack-vulnerability
ExploitTechnical DescriptionThird Party Advisory
github.com / ephort/laravel-user-enumeration-demo
ExploitThird Party Advisory
github.com / laravel/framework/pull/44069
PatchVendor Advisory
github.com / laravel/framework/releases/tag/v9.32.0
Release Notes