Docker Sandboxes flaws enable remote code execution
CERT-FR advisory: two vulnerabilities in Docker Sandboxes before 0.42.0 allow remote code execution and data confidentiality/integrity breaches; patches available.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 2 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT-FR has issued an advisory relaying a Docker security bulletin covering two vulnerabilities, CVE-2026-77179 and CVE-2026-79994, affecting Docker Sandboxes versions prior to 0.42.0. Successful exploitation could allow an attacker to achieve remote arbitrary code execution, as well as compromise the confidentiality and integrity of data handled by the affected component.
No indication of active exploitation in the wild is provided in this bulletin. Docker has published fixes in version 0.42.0 of Docker Sandboxes; defenders running this component should consult the official Docker security announcement and update affected instances to the patched version as soon as possible.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1189
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