CVE-2020-26137 - CVE House
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Status published Medium CVE-2020-26137

urllib3 before 1.25.9 allows CRLF injection if the attacker controls...

Vulnerability Description

urllib3 before 1.25.9 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of putrequest(). NOTE: this is similar to CVE-2020-26116.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

urllib3, ubuntu linux, debian linux, communications cloud native core network function cloud native environment, zfs storage appliance kit
Vulnerable Versions:
0, 16.04, 18.04, 20.04, 9.0, 22.2.0, 8.8

Timeline

Official Publish: September 29th, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.