Embedded malicious code (backdoor) in Aqua Security products - CVE-2026-33634
Published: March 30, 2026 / Updated: April 1, 2026
Vulnerability identifier: #VU124689
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2026-33634
CWE-ID: CWE-506
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Aqua Security
Affected software:
trivy
trivy-action
setup-trivy
trivy
trivy-action
setup-trivy
Detailed vulnerability description
The vulnerability allows a remote attacker to gain unauthorized access to the application.
The vulnerability exists due to presence of embedded malicious functionality in the application code (aka backdoor) that allows a remote attacker to gain unauthorized access to the application.
A threat actor used used compromised credentials to publish a malicious Trivy v0.69.4 release, force-push 76 of 77 version tags in `aquasecurity/trivy-action` to credential-stealing malware, and replace all 7 tags in `aquasecurity/setup-trivy` with malicious commits. The attacked occurred on March 19.
How to mitigate CVE-2026-33634
Vendor recommends downgrading to versions 0.69.2 or 0.69.3.
Sources
- https://docs.litellm.ai/blog/security-update-march-2026
- https://futuresearch.ai/blog/litellm-pypi-supply-chain-attack
- https://github.com/BerriAI/litellm/issues/24518
- https://github.com/aquasecurity/trivy/discussions/10425
- https://github.com/aquasecurity/trivy/security/advisories/GHSA-69fq-xp46-6x23
- https://github.com/pypa/advisory-database/tree/main/vulns/litellm/PYSEC-2026-2.yaml
- https://inspector.pypi.io/project/litellm/1.82.7/packages/79/5f/b6998d42c6ccd32d36e12661f2734602e72a576d52a51f4245aef0b20b4d/litellm-1.82.7-py3-none-any.whl/litellm/proxy/proxy_server.py#line.130
- https://inspector.pypi.io/project/litellm/1.82.8/packages/f6/2c/731b614e6cee0bca1e010a36fd381fba69ee836fe3cb6753ba23ef2b9601/litellm-1.82.8.tar.gz/litellm-1.82.8/litellm_init.pth#line.1
- https://www.wiz.io/blog/teampcp-attack-kics-github-action
- https://github.com/BerriAI/litellm/issues/24518#issuecomment-4127436387
- https://rosesecurity.dev/2026/03/20/typosquatting-trivy.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33634
- https://www.microsoft.com/en-us/security/blog/2026/03/24/detecting-investigating-defending-against-trivy-supply-chain-compromise/