CVE-2026-73282
Fixed in a distro release EPSS <1%CVSS 4.8
In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.
Products: openbsd openssh
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | openssh | 9.9p1-27.el10_2.alma.1 |
| AlmaLinux 10 | openssh-askpass | 9.9p1-27.el10_2.alma.1 |
| AlmaLinux 10 | openssh-clients | 9.9p1-27.el10_2.alma.1 |
| AlmaLinux 10 | openssh-keycat | 9.9p1-27.el10_2.alma.1 |
| AlmaLinux 10 | openssh-keysign | 9.9p1-27.el10_2.alma.1 |
| AlmaLinux 10 | openssh-server | 9.9p1-27.el10_2.alma.1 |
| AlmaLinux 8 | openssh | 8.0p1-33.el8_10 |
| AlmaLinux 8 | openssh-askpass | 8.0p1-33.el8_10 |
| AlmaLinux 8 | openssh-cavs | 8.0p1-33.el8_10 |
| AlmaLinux 8 | openssh-clients | 8.0p1-33.el8_10 |
| AlmaLinux 8 | openssh-keycat | 8.0p1-33.el8_10 |
| AlmaLinux 8 | openssh-ldap | 8.0p1-33.el8_10 |
| AlmaLinux 8 | openssh-server | 8.0p1-33.el8_10 |
| AlmaLinux 8 | pam_ssh_agent_auth | 0.10.3-8.33.el8_10 |
| AlmaLinux 9 | openssh | 9.9p1-11.el9_8.alma.1 |
| AlmaLinux 9 | openssh-askpass | 9.9p1-11.el9_8.alma.1 |
| AlmaLinux 9 | openssh-clients | 9.9p1-11.el9_8.alma.1 |
| AlmaLinux 9 | openssh-keycat | 9.9p1-11.el9_8.alma.1 |
| AlmaLinux 9 | openssh-server | 9.9p1-11.el9_8.alma.1 |
| AlmaLinux 9 | pam_ssh_agent_auth | 0.10.4-8.11.el9_8.alma.1 |
| Alpine 3.24 | openssh | 10.3_p1-r1 |
| Debian 12 | openssh | no fix |
| Debian 13 | openssh | no fix |
| Debian 14 | openssh | 1:10.5p1-1 |
| Debian 14 | openssh-gssapi | 1:10.5p1-1 |
| Red Hat Enterprise Linux 10.2 | openssh | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-askpass | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-askpass-debuginfo | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-clients | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-clients-debuginfo | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-debuginfo | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-debugsource | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-keycat | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-keycat-debuginfo | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-keysign | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-keysign-debuginfo | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-server | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-server-debuginfo | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 10.2 | openssh-sk-dummy-debuginfo | 0:9.9p1-27.el10_2 |
| Red Hat Enterprise Linux 8 | openssh | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-askpass | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-askpass-debuginfo | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-cavs | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-cavs-debuginfo | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-clients | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-clients-debuginfo | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-debuginfo | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-debugsource | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-keycat | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-keycat-debuginfo | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-ldap | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-ldap-debuginfo | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-server | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | openssh-server-debuginfo | 0:8.0p1-33.el8_10 |
| Red Hat Enterprise Linux 8 | pam_ssh_agent_auth | 0:0.10.3-8.33.el8_10 |
| Red Hat Enterprise Linux 8 | pam_ssh_agent_auth-debuginfo | 0:0.10.3-8.33.el8_10 |
| Red Hat Enterprise Linux 9 | openssh | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-askpass | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-askpass-debuginfo | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-clients | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-clients-debuginfo | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-debuginfo | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-debugsource | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-keycat | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-keycat-debuginfo | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-server | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-server-debuginfo | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | openssh-sk-dummy-debuginfo | 0:9.9p1-11.el9_8 |
| Red Hat Enterprise Linux 9 | pam_ssh_agent_auth | 0:0.10.4-8.11.el9_8 |
| Red Hat Enterprise Linux 9 | pam_ssh_agent_auth-debuginfo | 0:0.10.4-8.11.el9_8 |
| Red Hat Enterprise Linux eus 10.0 | openssh | 0:9.9p1-7.el10_0.5 |
| Red Hat Enterprise Linux eus 10.0 | openssh-askpass | 0:9.9p1-7.el10_0.5 |
| Red Hat Enterprise Linux eus 10.0 | openssh-clients | 0:9.9p1-7.el10_0.5 |
| Red Hat Enterprise Linux eus 10.0 | openssh-keycat | 0:9.9p1-7.el10_0.5 |
| Red Hat Enterprise Linux eus 10.0 | openssh-keysign | 0:9.9p1-7.el10_0.5 |
| Red Hat Enterprise Linux eus 10.0 | openssh-server | 0:9.9p1-7.el10_0.5 |
| Red Hat hummingbird 1 | openssh | 0:10.5p1-1.hum1 |
| Red Hat hummingbird 1 | openssh-askpass | 0:10.5p1-1.hum1 |
| Red Hat hummingbird 1 | openssh-clients | 0:10.5p1-1.hum1 |
| Red Hat hummingbird 1 | openssh-keycat | 0:10.5p1-1.hum1 |
| Red Hat hummingbird 1 | openssh-keysign | 0:10.5p1-1.hum1 |
| Red Hat hummingbird 1 | openssh-server | 0:10.5p1-1.hum1 |
| Red Hat hummingbird 1 | openssh-sk-dummy | 0:10.5p1-1.hum1 |
| Rocky Linux 10 | openssh | 0:9.9p1-27.el10_2.rocky.0.1 |
| Rocky Linux 8 | openssh | 0:8.0p1-33.el8_10 |
| Rocky Linux 9 | openssh | 0:9.9p1-11.el9_8.rocky.0.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise Micro 5.3 | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise Micro 5.4 | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise Micro 5.5 | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | openssh | 9.6p1-150600.6.52.2 |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP7 | openssh-askpass-gnome | 9.6p1-150600.6.52.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | openssh | 7.2p2-81.43.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | openssh-askpass-gnome | 7.2p2-81.43.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | openssh8.4 | 8.4p1-8.27.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | openssh | 9.6p1-150600.6.52.2 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | openssh-askpass-gnome | 9.6p1-150600.6.52.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | openssh | 7.2p2-81.43.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | openssh-askpass-gnome | 7.2p2-81.43.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | openssh8.4 | 8.4p1-8.27.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | openssh | 8.4p1-150300.3.68.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | openssh-askpass-gnome | 8.4p1-150300.3.68.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | openssh | 9.6p1-150600.6.52.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | openssh-askpass-gnome | 9.6p1-150600.6.52.1 |
| SUSE Linux Micro 6.0 | openssh | 9.6p1-159998.1.1 |
| Ubuntu 18.04 LTS | openssh-ssh1 | no fix |
| Ubuntu 20.04 LTS | openssh-ssh1 | no fix |
| Ubuntu 22.04 LTS | openssh | 1:8.9p1-3ubuntu0.17 |
| Ubuntu 22.04 LTS | openssh-ssh1 | no fix |
| Ubuntu 24.04 LTS | openssh | 1:9.6p1-3ubuntu13.19 |
| Ubuntu 24.04 LTS | openssh-ssh1 | no fix |
| Ubuntu 26.04 LTS | openssh | 1:10.2p1-2ubuntu3.6 |
| Ubuntu 26.04 LTS | openssh-ssh1 | no fix |
| Ubuntu 26.10 | openssh-ssh1 | no fix |
| Ubuntu Pro 14.04 LTS | openssh | 1:6.6p1-2ubuntu2.13+esm4 |
| Ubuntu Pro 16.04 LTS | openssh | 1:7.2p2-4ubuntu2.10+esm10 |
| Ubuntu Pro 18.04 LTS | openssh | 1:7.6p1-4ubuntu0.7+esm6 |
| Ubuntu Pro 20.04 LTS | openssh | 1:8.2p1-4ubuntu0.13+esm3 |
| Ubuntu Pro FIPS-preview 22.04 LTS | openssh | no fix |
| Ubuntu Pro FIPS-updates 16.04 LTS | openssh | no fix |
| Ubuntu Pro FIPS-updates 18.04 LTS | openssh | no fix |
| Ubuntu Pro FIPS-updates 20.04 LTS | openssh | no fix |
| Ubuntu Pro FIPS-updates 22.04 LTS | openssh | no fix |
| Ubuntu Pro FIPS-updates 24.04 LTS | openssh | 1:9.6p1-3ubuntu13.19+Fips1 |
| Ubuntu Pro FIPS 16.04 LTS | openssh | no fix |
| Ubuntu Pro FIPS 18.04 LTS | openssh | no fix |
| Ubuntu Pro FIPS 20.04 LTS | openssh | no fix |