VULNERABILITY INTELLIGENCE
CVE-2021-22876
CVSS score5.3 MEDIUM
EPSS probability5.30%
CISA KEVNot currently listed
Published2021-04-01
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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.
Weakness classification
- support@hackerone.com: CWE-359
- nvd@nist.gov: CWE-200
Primary references
- support@hackerone.com — Patch, Third Party Advisory
- support@hackerone.com — Patch, Vendor Advisory
- support@hackerone.com — Exploit, Issue Tracking, Patch, Third Party Advisory
- support@hackerone.com — Mailing List, Third Party Advisory
- support@hackerone.com — Mailing List, Third Party Advisory
- support@hackerone.com — Mailing List, Third Party Advisory
- support@hackerone.com — Mailing List, Third Party Advisory
- support@hackerone.com — Third Party Advisory
- support@hackerone.com — Third Party Advisory
- support@hackerone.com — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory