Description
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Paramiko | Paramiko | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | paramiko | 5.0.0-1 | — |
| Debian 13 | paramiko | No fix yet | — |
| Debian 12 | paramiko | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | paramiko | No fix yet | — |
| Ubuntu 26.04 LTS | paramiko | No fix yet | — |
| Ubuntu 25.10 | paramiko | No fix yet | — |
| Ubuntu 24.04 LTS | paramiko | No fix yet | — |
| Ubuntu 22.04 LTS | paramiko | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | paramiko | No fix yet | — |
| Ubuntu 18.04 LTS | paramiko | No fix yet | — |
| Ubuntu 14.04 LTS | paramiko | No fix yet | — |
| Ubuntu Pro 16.04 LTS | paramiko | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | python3-paramiko | 3.4.0-150400.9.9.1 | SUSE-SU-2026:4618-1 |
| SLES 15 SP4 | python-paramiko | 3.4.0-150400.13.13.1 | SUSE-SU-2026:3093-1 |
| SLES 3 | python-paramiko | 3.5.1-150700.20.6.1 | SUSE-SU-2026:3031-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | python-paramiko | 3.5.1-160000.3.1 | SUSE-SU-2026:22192-1 |
| SLES 16.0 | python-paramiko | 3.5.1-160000.3.1 | SUSE-SU-2026:22192-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-paramiko | 5.0.0-1.1 | openSUSE-SU-2026:11025-1 |
| openSUSE Leap 16.0 | python-paramiko | 3.5.1-160000.3.1 | openSUSE-SU-2026:21127-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | airflow-3 | 3.2.1-r2 | — |
| Wolfi rolling | az | 2.90.0-r0 | — |
| Wolfi rolling | datadog-agent-7.72-core-integrations | 7.72.4-r21 | — |
| Wolfi rolling | datadog-agent-7.73-core-integrations | No fix yet | — |
| Wolfi rolling | datadog-agent-7.77-core-integrations | 7.77.3-r7 | — |
| Wolfi rolling | datadog-agent-7.78-core-integrations | 7.78.4-r18 | — |
| Wolfi rolling | datadog-agent-7.79-core-integrations | 7.79.2-r3 | — |
| Wolfi rolling | py3.11-paramiko +2 | 5.0.0-r0 | — |
| Wolfi rolling | superset-6.0 | 6.0.0-r11 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | paramiko | <= 4.0.0 | — | PYSEC-2026-2858 |
| PyPI | paramiko | < 5.0.0 | 5.0.0 | GHSA-r374-rxx8-8654 |
Advisories 7
- WID-SEC-2026-3046 IBM Concert: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- SUSE-SU-2026:4618-1 Security update for python3-paramiko SUSE / openSUSE Security Updates · Oct 13, 2026
- SUSE-SU-2026:3093-1 Security update for python-paramiko SUSE / openSUSE Security Updates · Jul 18, 2026
- SUSE-SU-2026:3031-1 Security update for python-paramiko SUSE / openSUSE Security Updates · Jul 16, 2026
- openSUSE-SU-2026:21127-1 Security update for python-paramiko SUSE / openSUSE Security Updates · Jun 30, 2026
- SUSE-SU-2026:22192-1 Security update for python-paramiko SUSE / openSUSE Security Updates · Jun 24, 2026
- openSUSE-SU-2026:11025-1 python311-paramiko-5.0.0-1.1 on GA media SUSE / openSUSE Security Updates · Jun 14, 2026