DEBIAN-CVE-2020-26137

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2020-26137
Published: 30 Sept 2020, 18:15
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Sept 2020, 18:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:19
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Systems

  • debian•python-urllib3

    < 1.25.9-1 | < 1.25.9-1 | < 1.25.9-1 | < 1.25.9-1

References (1)