Back to Database
Status published
High
CVE-2020-26116
http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x...
Vulnerability Description
http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 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 HTTPConnection.request.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-26116
Credits & Attribution
No credits recorded in the NVD database.
References
- https://python-security.readthedocs.io/vuln/http-header-injection-method.html
- https://bugs.python.org/issue39603
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BW4GCLQISJCOEGQNIMVUZDQMIY6RR6CC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWMAVY4T4257AZHTF2RZJKNJNSJFY24O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OXI72HIHMXCQFWTULUXDG7VDA2BCYL4Y/
- https://usn.ubuntu.com/4581-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDQ2THWU4GPV4Y5H5WW5PFMSWXL2CRFD/
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00027.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QOX7DGMMWWL6POCRYGAUCISOLR2IG3XV/
- https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html
- https://security.gentoo.org/glsa/202101-18
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://security.netapp.com/advisory/ntap-20201023-0001/
- https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html
More from python
View All →CVE-2022-48566
An issue was discovered in compare_digest in Lib/hmac.py in Python...
Medium
5.9
CVE-2022-48565
An XML External Entity (XXE) issue was discovered in Python...
Critical
9.8
CVE-2022-48564
read_ints in plistlib.py in Python through 3.9.1 is vulnerable to...
Medium
6.5
CVE-2022-48560
A use-after-free exists in Python through 3.9 via heappushpop in...
High
7.5
CVE-2022-45199
Pillow before 9.3.0 allows denial of service via SAMPLESPERPIXEL....
High
7.5
Affected Vendor
python
View all reports →Affected Software
python, fedora, ubuntu linux, solidfire, hci storage node, debian linux, zfs storage appliance kit, leap
Vulnerable Versions:
3.0.0, 3.6.0, 3.7.0, 3.8.0, 31, 32, 33, 12.04, 14.04, 16.04, 18.04, 9.0, 8.8, 15.1
Timeline
Official Publish:
September 27th, 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:C/C:L/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.