Vulnerability · Published Jan 29, 2026 · Assigned by GitHub_M
CVE-2026-24845malcontent's OCI image scanning could expose registry credentials
Medium 6.5
In plain English
A medium-severity security flaw in malcontent from chainguard-dev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
malcontent discovers supply-chain compromises through. context, differential analysis, and YARA. Starting in version 0.10.0 and prior to version 1.20.3, malcontent could be made to expose Docker registry credentials if it scanned a specially crafted OCI image reference. malcontent uses google/go-containerregistry for OCI image pulls, which by default uses the Docker credential keychain. A malicious registry could return a `WWW-Authenticate` header redirecting token authentication to an attacker-controlled endpoint, causing credentials to be sent to that endpoint. Version 1.20.3 fixes the issue by defaulting to anonymous auth for OCI pulls.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/chainguard-dev/bincapz | no fix listed | GO-2026-4392 |
| Go | github.com/chainguard-dev/malcontent | 1.20.3 | GHSA-9m43-p3cx-w8j5 |
| Go | github.com/chainguard-dev/malcontent | 1.20.3 | GO-2026-4392 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| chainguard-dev | malcontent | >= 0.10.0, < 1.20.3 |
Weakness: CWE-522 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N