CVE-2026-76561 Command injection in Red Hat Certificate System 9
High 7.2
Published
Updated
Check this codebase for CVE-2026-76561 and fix it if it is affected.
What it is: CVE-2026-76561 is a high-severity command injection vulnerability in Red Hat Certificate System 9, published on 8 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-76561 in the wild and no public exploit code.
Affected product: Red Hat Certificate System 9. 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-2026-76561/ (Markdown: https://insights.sbomify.com/CVE-2026-76561/index.md)
Authenticated CA administrators can execute arbitrary commands via unsanitized certificate profile imports in Dogtag PKI.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-76561?
CVE-2026-76561 is a high-severity command injection vulnerability in Red Hat Certificate System 9, published on 8 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges can exploit Dogtag's ExternalProcessConstraint mechanism to execute arbitrary commands with attacker-controlled environment variables, achieving code execution as the pkiuser account.
Weakness: CWE-78
Which versions are affected by CVE-2026-76561?
Linux distribution packages (40)
idm-jss AlmaLinux:8 | All versions | 4.11.0-1.module_el8.10.0+3801+17b19a60 |
idm-jss-javadoc AlmaLinux:8 | All versions | 4.11.0-1.module_el8.10.0+3801+17b19a60 |
idm-ldapjdk AlmaLinux:8 | All versions | 4.24.0-1.module_el8.10.0+3801+17b19a60 |
idm-ldapjdk-javadoc AlmaLinux:8 | All versions | 4.24.0-1.module_el8.10.0+3801+17b19a60 |
idm-pki-acme AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-pki-base AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-pki-base-java AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-pki-ca AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-pki-kra AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-pki-server AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-pki-symkey AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-pki-tools AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
idm-tomcatjss AlmaLinux:8 | All versions | 7.8.0-1.module_el8.10.0+3801+17b19a60 |
python3-idm-pki AlmaLinux:8 | All versions | 10.15.1-3.module_el8.10.0+4298+2330dc61 |
resteasy AlmaLinux:8 | All versions | 3.0.26-7.module_el8.10.0+4273+d9f1a83b |
resteasy-javadoc AlmaLinux:8 | All versions | 3.0.26-7.module_el8.10.0+4273+d9f1a83b |
idm-jss Red Hat:enterprise_linux:8::appstream | All versions | 0:4.11.0-1.module+el8.10.0+21280+cce842b8 |
idm-jss-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:4.11.0-1.module+el8.10.0+21280+cce842b8 |
idm-jss-javadoc Red Hat:enterprise_linux:8::appstream | All versions | 0:4.11.0-1.module+el8.10.0+21280+cce842b8 |
idm-ldapjdk Red Hat:enterprise_linux:8::appstream | All versions | 0:4.24.0-1.module+el8.10.0+21280+cce842b8 |
idm-ldapjdk-javadoc Red Hat:enterprise_linux:8::appstream | All versions | 0:4.24.0-1.module+el8.10.0+21280+cce842b8 |
idm-pki-acme Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-base Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-base-java Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-ca Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-kra Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-server Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-symkey Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-symkey-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-tools Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-pki-tools-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
idm-tomcatjss Red Hat:enterprise_linux:8::appstream | All versions | 0:7.8.0-1.module+el8.10.0+21280+cce842b8 |
jss Red Hat:enterprise_linux:8::appstream | All versions | 0:4.11.0-1.module+el8.10.0+21280+cce842b8 |
jss-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:4.11.0-1.module+el8.10.0+21280+cce842b8 |
ldapjdk Red Hat:enterprise_linux:8::appstream | All versions | 0:4.24.0-1.module+el8.10.0+21280+cce842b8 |
pki-core Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
pki-core-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
pki-core-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
python3-idm-pki Red Hat:enterprise_linux:8::appstream | All versions | 0:10.15.1-3.module+el8.10.0+24994+a709cca8 |
resteasy Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.26-7.module+el8.10.0+21132+79720f4e |
How do I fix CVE-2026-76561?
Apply the vendor's patch.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-76561 being exploited?
There is no known exploitation of CVE-2026-76561 in the wild and no public exploit code.
Sources
Also known as ALSA-2026:75573, GHSA-pp8g-7wxg-9php, RHSA-2026:75573, RLSA-2026:75573, UBUNTU-CVE-2026-76561.