Patchfirst
CVE-2026-33634 KEVPublic exploit High · 8.8 EPSS 59.7%

Aquasecurity Trivy Embedded Malicious Code Vulnerability

Aquasecurity · Trivy

Summary

Trivy, Aquasecurity's security scanner, was compromised: the malicious v0.69.4 release, 76 of 77 version tags in aquasecurity/trivy-action, and all 7 tags in aquasecurity/setup-trivy were replaced with credential-stealing code. An attacker with network access and low-privilege credentials (the attack vector requires only low privileges and no user interaction) can run this malicious code in any pipeline or environment that pulls or executes the affected Trivy or GitHub Action versions, and can steal the secrets accessible to it.

Official description · NVD

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.

Breakdown
80.1 / 100
Exploited
Yes, in CISA KEV
Reports
2
Tactics
2/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited the day it was disclosed. Public exploit code (PoC-in-GitHub) appeared 2 days after disclosure.

  1. DisclosedFirst seen exploitedVulnCheck KEV evidenceday 0
  2. Public exploit codePoC-in-GitHub+2 days
  3. Added to CISA KEVEU database agrees+3 days

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order, 2 cited passages 2

Initial AccessTA0001

Compromise Software Supply Chain T1195.002 Medium
AI mapping from the description · how it is exploited

compromised tags and commits delivered via supply chain

replace all 7 tags in `aquasecurity/setup-trivy` with malicious commits
From the official description (NVD) Original (opens in a new tab) ↗

Credential AccessTA0006

Credentials In Files T1552.001 Medium
AI mapping from the description · primary impact

credential-stealing malware harvests secrets from pipelines

threat actor used compromised credentials to publish a malicious Trivy
From the official description (NVD) Original (opens in a new tab) ↗

Detection

0 rules for this CVE · 41 general rules for its techniques

Rules for this CVE

0 that reference CVE-2026-33634 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

Am I affected? What do I upgrade to?

From GitHub Security Advisories and OSV

3 packages in 2 ecosystems. Main package: github.com/aquasecurity/trivy.

Gogithub.com/aquasecurity/trivyGHSA-69fq-xp46-6x23GO-2026-4919

No fixed version published. Check the advisory or remove the package.

Affected versions

If you runUpgrade to
0.69.4 and laterNo fix published
Other packages that bundle this code (2)

Forks, repackagings and products that include the affected code. Each has its own fixed version.

  • GitHub Actionsaquasecurity/trivy-action
    Affected: All versions before 0.35.0Upgrade to 0.35.0 or later
  • GitHub Actionsaquasecurity/setup-trivy
    Affected: All versions before 0.2.6Upgrade to 0.2.6 or later

Check your lockfile against all CVEs

What security researchers reported

Named in 2 threat reports
2 reportsaikido.devFBI

Reports are matched by finding the exact id CVE-2026-33634 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

13 links, grouped by NVD tag (1 duplicate merged)
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