AUGUST 4, 2026
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Case File

CVE-2021-22876

MEDIUM · CVSS 5.3 EPSS 5.30%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-01 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. See the original NVD description below for full technical details.

CVE
CVE-2021-22876
Severity
MEDIUM
CVSS
5.3
EPSS
5.30%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)