CVE-2026-44405
Paramiko rsakey.py allows the SHA-1 algorithm
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
CVE-2026-44405- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-327
- Updated
- 2026-11-02
EUVDEUVD-2026-27514
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
EUVD-2026-27514- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-r374-rxx8-8654
Paramiko rsakey.py allows the SHA-1 algorithm
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
GHSA-r374-rxx8-8654- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-327
- Updated
- 2026-11-07
NVD
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
CVE-2026-44405- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-327
- Updated
- 2026-11-02
OSV
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
CVE-2026-44405- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-327
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-44405
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
DEBIAN-CVE-2026-44405- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Updated
- 2026-11-04
Show 11 moreShow less
OSVGHSA-r374-rxx8-8654
Paramiko rsakey.py allows the SHA-1 algorithm
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
GHSA-r374-rxx8-8654- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-327
- Updated
- 2026-11-07
OSVPYSEC-2026-2858
Paramiko rsakey.py allows the SHA-1 algorithm
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
PYSEC-2026-2858- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-44405
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
- Record
UBUNTU-CVE-2026-44405- CVSS 3.1
- 3.4 Low
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N - Updated
- 2026-11-02
OSVCLSA-2026-1781571264 No score
TuxCare security update for paramiko (1 CVE)
TuxCare rebuilt paramiko to address 1 CVE. Fixed in 3.0.0.post2+tuxcare.
- Record
CLSA-2026-1781571264- Updated
- 2026-11-02
OSVCLSA-2026-1789543032 No score
TuxCare security update for paramiko (2 CVEs)
TuxCare rebuilt paramiko to address 2 CVEs. Fixed in 2.12.0.post1+tuxcare.
- Record
CLSA-2026-1789543032- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:11025-1 No score
python311-paramiko-5.0.0-1.1 on GA media
These are all security issues fixed in the python311-paramiko-5.0.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:11025-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:21127-1 No score
Security update for python-paramiko
This update for python-paramiko fixes the following issue
- CVE-2026-44405: data integrity compromise due to allowed SHA-1 algorithm use (bsc#1264225).
- Record
openSUSE-SU-2026:21127-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:22192-1 No score
Security update for python-paramiko
This update for python-paramiko fixes the following issue
- CVE-2026-44405: data integrity compromise due to allowed SHA-1 algorithm use (bsc#1264225).
- Record
SUSE-SU-2026:22192-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:3031-1 No score
Security update for python-paramiko
This update for python-paramiko fixes the following issues:
- CVE-2026-44405: data integrity compromise due to allowed SHA-1 algorithm use (bsc#1264225).
- Record
SUSE-SU-2026:3031-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:3093-1 No score
Security update for python-paramiko
This update for python-paramiko fixes the following issue
- CVE-2026-44405: data integrity compromise due to allowed SHA-1 algorithm use (bsc#1264225).
- Record
SUSE-SU-2026:3093-1- Updated
- 2026-11-02
OSVSUSE-SU-2026:4618-1 No score
Security update for python3-paramiko
This update for python3-paramiko fixes the following issue:
- CVE-2026-44405: data integrity compromise due to allowed SHA-1 algorithm use (bsc#1264225).
- Record
SUSE-SU-2026:4618-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
paramikoPyPI |
before 5.0.0 | 5.0.0 |
paramikoTuxCare:PyPI |
3.0.0 up to 3.0.0.post2+tuxcare, plus listed versions 3.0.0.post1+tuxcare |
3.0.0.post2+tuxcare |
paramikoTuxCare:PyPI From an advisory covering 2 CVEs |
2.12.0 up to 2.12.0.post1+tuxcare | 2.12.0.post1+tuxcare |
paramikoDebian:12 |
All versions, plus listed versions 2.12.0-22.12.0-33.4.0-13.4.0-23.4.1-1 Show 11 moreShow less3.4.1-23.5.0-13.5.0-1~exp13.5.1-13.5.1-23.5.1-34.0.0-14.0.0-24.0.0-34.0.0-45.0.0-1 |
None known |
paramikoDebian:13 |
All versions, plus listed versions 3.5.1-34.0.0-14.0.0-24.0.0-34.0.0-45.0.0-1 |
None known |
paramikoDebian:14 |
before 5.0.0-1, plus listed versions 3.5.1-34.0.0-14.0.0-24.0.0-34.0.0-4 |
5.0.0-1 |
paramikoPyPI |
before 5.0.0, plus listed versions 0.1-bulbasaur0.1-charmander0.9-doduo0.9-eevee0.9-fearow Show 45 moreShow less0.9-gyarados0.9-horsea0.9-ivysaur1.01.11.10.01.10.11.10.21.10.31.10.41.10.51.10.61.10.71.11.01.11.11.11.21.11.31.11.41.11.51.11.61.12.01.12.11.12.21.12.31.12.41.13.01.13.11.13.21.13.31.13.41.14.01.14.11.14.21.14.31.15.01.15.11.15.21.15.31.15.41.15.51.16.01.16.11.16.21.16.31.17.0 |
5.0.0 |
paramikoPyPI |
through 4.0.0, plus listed versions 0.1-bulbasaur0.1-charmander0.9-doduo0.9-eevee0.9-fearow Show 45 moreShow less0.9-gyarados0.9-horsea0.9-ivysaur1.01.11.10.01.10.11.10.21.10.31.10.41.10.51.10.61.10.71.11.01.11.11.11.21.11.31.11.41.11.51.11.61.12.01.12.11.12.21.12.31.12.41.13.01.13.11.13.21.13.31.13.41.14.01.14.11.14.21.14.31.15.01.15.11.15.21.15.31.15.41.15.51.16.01.16.11.16.21.16.31.17.0 |
None known |
python-paramikoSUSE:Linux Enterprise Server 16.0 |
before 3.5.1-160000.3.1 | 3.5.1-160000.3.1 |
python-paramikoSUSE:Linux Enterprise Server for SAP applications 16.0 |
before 3.5.1-160000.3.1 | 3.5.1-160000.3.1 |
Show 14 moreShow less
| Package | Affected | Fixed |
|---|---|---|
python-paramikoSUSE:Linux Enterprise Module for Python 3 15 SP7 |
before 3.5.1-150700.20.6.1 | 3.5.1-150700.20.6.1 |
python-paramikoSUSE:Linux Enterprise Module for Public Cloud 15 SP4 |
before 3.4.0-150400.13.13.1 | 3.4.0-150400.13.13.1 |
python3-paramikoSUSE:Linux Enterprise Module for Basesystem 15 SP7 |
before 3.4.0-150400.9.9.1 | 3.4.0-150400.9.9.1 |
paramikoUbuntu:14.04:LTS |
All versions, plus listed versions 1.10.1-11.10.1-1git11.10.1-1git1build11.10.1-1git1ubuntu0.11.10.1-1git1ubuntu0.2 |
None known |
paramikoUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 1.15.2-11.15.3-11.15.3-1ubuntu11.16.0-11.16.0-1ubuntu0.11.16.0-1ubuntu0.21.16.0-1ubuntu0.2+esm2 |
None known |
paramikoUbuntu:18.04:LTS |
All versions, plus listed versions 2.0.0-12.0.0-1ubuntu12.0.0-1ubuntu1.12.0.0-1ubuntu1.22.0.0-1ubuntu1.3 |
None known |
paramikoUbuntu:20.04:LTS |
All versions, plus listed versions 2.6.0-12.6.0-22.6.0-2ubuntu0.12.6.0-2ubuntu0.3 |
None known |
paramikoUbuntu:22.04:LTS |
All versions, plus listed versions 2.7.2-1ubuntu12.8.0-1ubuntu12.8.1-1ubuntu12.8.1-1ubuntu22.8.1-1ubuntu32.9.3-0ubuntu12.9.3-0ubuntu1.22.9.3-0ubuntu1.3 |
None known |
paramikoUbuntu:24.04:LTS |
All versions, plus listed versions 2.12.0-2ubuntu12.12.0-2ubuntu42.12.0-2ubuntu4.1 |
None known |
paramikoUbuntu:25.10 |
All versions, plus listed versions 3.5.1-2ubuntu13.5.1-3ubuntu1 |
None known |
paramikoUbuntu:26.10 |
All versions, plus listed versions 4.0.0-1ubuntu24.0.0-2ubuntu1 |
None known |
paramikoUbuntu:26.04:LTS |
All versions, plus listed versions 3.5.1-3ubuntu14.0.0-1ubuntu14.0.0-1ubuntu2 |
None known |
python-paramikoopenSUSE:Tumbleweed From an advisory covering 3 CVEs |
before 5.0.0-1.1 | 5.0.0-1.1 |
python-paramikoopenSUSE:Leap 16.0 |
before 3.5.1-160000.3.1 | 3.5.1-160000.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, references | OSV | |
| affected, references | GitHub Advisories | |
| affected | ||
| affected, facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-44405 is a low vulnerability (CVSS 3.4) in Paramiko, published May 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. Fixed in paramiko 5.0.0.
References
github.com/paramiko/paramiko/commit/a4489456b6f65281e172380cc4826cee5e851dbb
ostif.org/wp-content/uploads/2026/05/25-11-2415-REP_paramiko-security-audit_v1.1.pdf
nvd.nist.gov/vuln/detail/CVE-2026-44405
Show 13 moreShow less
pypi.org/project/paramiko
security-tracker.debian.org/tracker/CVE-2026-44405
suse.com/support/update/announcement/2026/suse-su-202622192-1
bugzilla.suse.com/1264225
ubuntu.com/security/CVE-2026-44405
cve.org/CVERecord?id=CVE-2026-44405
Left out here: 199 versions. The JSON record has them.