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CVE-2021-22876

Published: Apr 1, 2021Updated: Jun 9, 2025 Sources: CVE List NVD BDU csafCWE-359
5.3MEDIUM
NVD MITRE
EPSS Score
5.3%
Top 8.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-359CWE-200

Affected Products

netapp
commercial·US
hci management node
Hardware Firmware
solidfire
Hardware Firmware
hci compute node
Hardware Firmware
hci storage node
Hardware Firmware
oracle
commercial·USaka oracle corp.
communications billing and revenue managementOn-premWeb App
Enterprise Software / itsm-monitoring
essbaseOn-premDatabase
Databases / data-warehouse-analytics
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»On-premOS
Operating Systems / linux-distro
АО «Лаборатория Касперского»
commercial·RUaka kaspersky, ao laboratoriya kasperskogo
Kaspersky Endpoint Security 10 для LinuxOn-prem
Security Products / endpoint-av-edr
Kaspersky Security для Microsoft Exchange ServerOn-prem
Security Products / endpoint-av-edr
haxx
oss-project·SEaka haxx.se
libcurl
OSS Libraries
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
and 10 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-22876?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
cert-portal.siemens.com
https://curl.se/docs/CVE-2021-22876.html
curl.se
https://hackerone.com/reports/1101882
hackerone.com
and 30 more references View all →

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