CVE-2026-33634: Aquasecurity Trivy Embedded Malicious Code Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 26 Mar 2026, 3 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 59.7%
EPSS score, percentile 99.1 of all scored records
- How severe?
- 9.4 Critical
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA deadline 9 Apr 2026. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- < 0.2.6
- < 0.35.0
- = 0.69.4
- >= 1.82.7, <= 1.82.8
- >= 4.87.1, <= 4.87.2
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: 9 April 2026.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | < 0.2.6 |
| Status | Versions |
|---|---|
| Affected | < 0.35.0 |
| Status | Versions |
|---|---|
| Affected | = 0.69.4 |
| Status | Versions |
|---|---|
| Affected | >= 1.82.7, <= 1.82.8 |
| Status | Versions |
|---|---|
| Affected | >= 4.87.1, <= 4.87.2 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
Aquasecurity Trivy contains an embedded malicious code vulnerability that could allow an attacker to gain access to everything in the CI/CD environment, including all tokens, SSH keys, cloud credentials, database passwords, and any sensitive configuration in memory.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2026-33634 to its Known Exploited Vulnerabilities (KEV) catalog on 26 Mar 2026.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 9 Apr 2026.
- The CVE record was published on 23 Mar 2026, 3 days before it was added to KEV.
- The CVE record carries a CVSS v4.0 base score of 9.4 (Critical), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 59.7% (percentile 99.1), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
Trivy ecosystem supply chain briefly compromised
Trivy is a security scanner. On March 19, 2026, a threat actor 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. This incident is a continuation of the supply chain attack that began in late February 2026. Following the initial disclosure on March 1, credential rotation was performed but was not atomic (not all credentials were revoked simultaneously). The attacker could have use a valid token to exfiltrate newly rotated secrets during the rotation window (which lasted a few days). This could have allowed the attacker to retain access and execute the March 19 attack. Affected components include the `aquasecurity/trivy` Go / Container image version 0.69.4, the `aquasecurity/trivy-action` GitHub Action versions 0.0.1 – 0.34.2 (76/77), and the`aquasecurity/setup-trivy` GitHub Action versions 0.2.0 – 0.2.6, prior to the recreation of 0.2.6 with a safe commit. Known safe versions include versions 0.69.2 and 0.69.3 of the Trivy binary, version 0.35.0 of trivy-action, and version 0.2.6 of setup-trivy. Additionally, take other mitigations to ensure the safety of secrets. If there is any possibility that a compromised version ran in one's environment, all secrets accessible to affected pipelines must be treated as exposed and rotated immediately. Check whether one's organization pulled or executed Trivy v0.69.4 from any source. Remove any affected artifacts immediately. Review all workflows using `aquasecurity/trivy-action` or `aquasecurity/setup-trivy`. Those who referenced a version tag rather than a full commit SHA should check workflow run logs from March 19–20, 2026 for signs of compromise. Look for repositories named `tpcp-docs` in one's GitHub organization. The presence of such a repository may indicate that the fallback exfiltration mechanism was triggered and secrets were successfully stolen. Pin GitHub Actions to full, immutable commit SHA hashes, don't use mutable version tags.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-506: Embedded Malicious Code
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 23 Mar 2026 | CVE record published |
| 26 Mar 2026 | Added to CISA KEV |
| 30 Mar 2026 | CVE record last updated |
| 9 Apr 2026 | CISA due date for the required action |
References
- https://github.com/aquasecurity/trivy/security/advisories/GHSA-69fq-xp46-6x23
- https://github.com/team-telnyx/telnyx-python/security/advisories/GHSA-955r-262c-33jc
- https://github.com/BerriAI/litellm/issues/24518
- https://docs.litellm.ai/blog/security-update-march-2026
- https://futuresearch.ai/blog/litellm-pypi-supply-chain-attack
- https://github.com/aquasecurity/trivy/discussions/10425
- 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/li…
- https://inspector.pypi.io/project/litellm/1.82.8/packages/f6/2c/731b614e6cee0bca1e010a36fd381fba69ee836fe3cb6753ba23ef2b9601/litellm-1.82.8.tar.gz/litellm-1.82…
- https://www.wiz.io/blog/teampcp-attack-kics-github-action