CVE-2021-22876
curl - security update
5.3
MEDIUM
CVSS 3.1
EPSS 0.11%
Description
curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.
How to fix CVE-2021-22876
To remediate CVE-2021-22876, upgrade the affected package to a fixed version below.
- —upgrade to 7.76.0-r0 or later
- —upgrade to 7.74.0-1.2 or later
- —upgrade to 7.52.1-5+deb9u14 or later
Is CVE-2021-22876 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 7.76.0-r0
- from 0, < 7.74.0-1.2
- from 0, < 7.52.1-5+deb9u14
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |