CVE-2026-7598
Fixed in a distro release EPSS <1%CVSS 7.3
A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.
Products: Red Hat Hardened Images, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat OpenShift Container Platform 4, Red Hat OpenShift Update Service, Red Hat Trusted Profile Analyzer
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.20 | libssh2 | 1.11.0-r3 |
| Alpine 3.21 | libssh2 | 1.11.1-r1 |
| Alpine 3.22 | libssh2 | 1.11.1-r1 |
| Alpine 3.23 | libssh2 | 1.11.1-r2 |
| Alpine 3.24 | libssh2 | 1.11.1-r2 |
| Amazon Linux 2 | libssh2 | 1.4.3-12.amzn2.2.7 |
| Amazon Linux 2 | libssh2-devel | 1.4.3-12.amzn2.2.7 |
| Amazon Linux 2 | libssh2-docs | 1.4.3-12.amzn2.2.7 |
| Amazon Linux 2023 | cargo-c | 0.10.19-1.amzn2023.0.3 |
| Amazon Linux 2023 | libssh2 | 1.10.0-1.amzn2023.0.4 |
| Amazon Linux 2023 | libssh2-devel | 1.10.0-1.amzn2023.0.4 |
| Amazon Linux 2023 | libssh2-docs | 1.10.0-1.amzn2023.0.4 |
| Chainguard | libssh2 | 1.11.1-r5 |
| Chainguard | libssh2-dev | 1.11.1-r5 |
| Chainguard | libssh2-doc | 1.11.1-r5 |
| Debian 12 | libssh2 | 1.10.0-3+deb12u1 |
| Debian 13 | libssh2 | 1.11.1-1+deb13u1 |
| Debian 14 | libssh2 | 1.11.1-3 |
| Red Hat hummingbird 1 | libssh2 | 0:1.11.1-5.1.hum1 |
| Red Hat hummingbird 1 | libssh2-devel | 0:1.11.1-5.1.hum1 |
| Red Hat hummingbird 1 | libssh2-docs | 0:1.11.1-5.1.hum1 |
| Red Hat hummingbird 1 | rust | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-analyzer | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-debugger-common | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-doc | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-gdb | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-lldb | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-src | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-aarch64-unknown-none-softfloat | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-aarch64-unknown-uefi | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-i686-pc-windows-gnu | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-wasm32-unknown-unknown | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-wasm32-wasip1 | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-x86_64-pc-windows-gnu | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-x86_64-unknown-none | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rust-std-static-x86_64-unknown-uefi | 0:1.95.0-5.hum1 |
| Red Hat hummingbird 1 | rustfmt | 0:1.95.0-5.hum1 |
| Red Hat rhel els 7 | libssh2 | 0:1.8.0-4.el7_9.2 |
| Red Hat rhel els 7 | libssh2-devel | 0:1.8.0-4.el7_9.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libssh2_org | 1.11.0-150000.4.35.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libssh2_org | 1.11.0-150000.4.35.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Micro 5.3 | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Micro 5.4 | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Micro 5.5 | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libssh2_org | 1.11.0-150600.20.6.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | libssh2_org | 1.11.0-29.18.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libssh2_org | 1.11.0-150000.4.35.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libssh2_org | 1.11.0-150600.20.6.1 |
| SUSE Linux Enterprise Server 16.0 | libssh2_org | 1.11.1-160000.5.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | libssh2_org | 1.11.0-29.18.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libssh2_org | 1.11.0-150200.9.8.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libssh2_org | 1.11.0-150600.20.6.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libssh2_org | 1.11.1-160000.5.1 |
| SUSE Linux Micro 6.0 | libssh2_org | 1.11.0-4.1 |
| SUSE Linux Micro 6.1 | libssh2_org | 1.11.0-slfo.1.1_2.1 |
| SUSE Linux Micro 6.2 | libssh2_org | 1.11.1-160000.5.1 |
| Ubuntu 22.04 LTS | libssh2 | no fix |
| Ubuntu 24.04 LTS | libssh2 | 1.11.0-4.1ubuntu0.24.04.1 |
| Ubuntu 25.10 | libssh2 | 1.11.1-1ubuntu0.25.10.1 |
| Ubuntu 26.04 LTS | libssh2 | 1.11.1-1ubuntu0.26.04.1 |
| Ubuntu Pro 14.04 LTS | libssh2 | no fix |
| Ubuntu Pro 16.04 LTS | libssh2 | no fix |
| Ubuntu Pro 18.04 LTS | libssh2 | no fix |
| Ubuntu Pro 20.04 LTS | libssh2 | no fix |
| Wolfi | libssh2 | 1.11.1-r5 |
| Wolfi | libssh2-dev | 1.11.1-r5 |
| Wolfi | libssh2-doc | 1.11.1-r5 |
| openSUSE Leap 16.0 | libssh2_org | 1.11.1-160000.5.1 |
| openSUSE Tumbleweed | libssh2_org | 1.11.1-3.1 |