CVE-2026-60002 Use after free in OpenSSH
High 7.7
Published
Updated
Check this codebase for CVE-2026-60002 and fix it if it is affected.
What it is: CVE-2026-60002 is a high-severity use after free vulnerability in OpenSSH, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-60002 in the wild and no public exploit code.
Affected product: OpenSSH. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-60002/ (Markdown: https://insights.sbomify.com/CVE-2026-60002/index.md)
A use-after-free in the OpenSSH client allows attackers to cause denial of service or execute code during key re-exchange.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-60002?
CVE-2026-60002 is a high-severity use after free vulnerability in OpenSSH, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.)
Weakness: CWE-416
Which versions are affected by CVE-2026-60002?
It affects 1 product.
Linux distribution packages (31)
openssh Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-askpass Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-askpass-debuginfo Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-clients Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-clients-debuginfo Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-debuginfo Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-debugsource Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-keycat Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-keycat-debuginfo Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-keysign Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-keysign-debuginfo Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-server Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-server-debuginfo Red Hat:enterprise_linux_eus:10.0 | All versions | 0:9.9p1-7.el10_0.4 |
openssh-askpass Red Hat:rhel_eus:9.6::appstream | All versions | 0:8.7p1-45.el9_6.4 |
openssh-askpass-debuginfo Red Hat:rhel_eus:9.6::appstream | All versions | 0:8.7p1-45.el9_6.4 |
openssh-debuginfo Red Hat:rhel_eus:9.6::appstream | All versions | 0:8.7p1-45.el9_6.4 |
openssh-debugsource Red Hat:rhel_eus:9.6::appstream | All versions | 0:8.7p1-45.el9_6.4 |
openssh-keycat-debuginfo Red Hat:rhel_eus:9.6::appstream | All versions | 0:8.7p1-45.el9_6.4 |
openssh-server-debuginfo Red Hat:rhel_eus:9.6::appstream | All versions | 0:8.7p1-45.el9_6.4 |
openssh-sk-dummy-debuginfo Red Hat:rhel_eus:9.6::appstream | All versions | 0:8.7p1-45.el9_6.4 |
pam_ssh_agent_auth Red Hat:rhel_eus:9.6::appstream | All versions | 0:0.10.4-5.45.el9_6.4 |
openssh Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-askpass-debuginfo Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-clients Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-debuginfo Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-debugsource Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-keycat Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-keycat-debuginfo Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-server Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-server-debuginfo Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
openssh-sk-dummy-debuginfo Red Hat:rhel_eus:9.6::baseos | All versions | 0:8.7p1-45.el9_6.4 |
Products include OpenSSH.
How do I fix CVE-2026-60002?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-60002 being exploited?
There is no known exploitation of CVE-2026-60002 in the wild and no public exploit code.
Other vulnerabilities in OpenSSH
Sources
Also known as ALPINE-CVE-2026-60002, AZL-92054, BELL-CVE-2026-60002, CLSA-2026-1784109248, DEBIAN-CVE-2026-60002, ECHO-f3c1-98db-8b17 and 12 more.