Description
Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy.
References (3)
Core 3
Core References
Patch, Third Party Advisory
https://github.com/gorilla/handlers/commit/90663712d74cb411cbef281bc1e08c19d1a76145
Patch, Third Party Advisory
https://github.com/gorilla/handlers/pull/116
Third Party Advisory
https://pkg.go.dev/vuln/GO-2020-0020
Scores
CVSS v3
9.8
EPSS
0.0070
EPSS Percentile
48.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-346
Status
published
Products (2)
gorilla/handlers
0 - 1.3.0Go
gorillatoolkit/handlers
< 1.3.0
Published
Dec 27, 2022
Tracked Since
Feb 18, 2026