Wildcard registry selection in Contrast imagepuller leaks credentials
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Edgeless Systems Contrast from 1.21.0 before 1.25.0 contains a non-deterministic registry selection flaw in imagepuller that can prefer wildcard configuration entries over concrete domain matches. When a pull configuration lists both a concrete domain and its parent wildcard, registry credentials, CA bundles, or mirror settings meant for the wildcard may be applied to the concrete registry. An attacker with low privileges and adjacent network access may leak credentials or pull metadata. The weakness is classified as CWE-1289 (Improper Validation of Unsafe Equivalence in Input).
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Edgeless Systems Contrast from 1.21.0 before 1.25.0 contains a non-deterministic registry selection flaw in imagepuller that can prefer wildcard configuration entries over concrete domain matches. When a pull configuration lists both a concrete domain and its parent wildcard, registry credentials, CA bundles, or mirror settings intended for the wildcard may be applied to the concrete registry, leaking credentials or pull metadata.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| edgelesssys | contrast | 1.21.0 to before 1.25.0 | 1.25.0 | Patch available | CNA |
- contrast Vendoredgelesssys Affected 1.21.0 to before 1.25.0 Fixed in 1.25.0 Patch available CNA
Remediation
Upgrade Edgeless Systems Contrast to version 1.25.0 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA contrast (edgelesssys) Fixed in 1.25.0
Timeline
- 2026-10-25 Threatist record created from CVE-2026-116197
- 2026-10-27 Alias added: GHSA-xx94-cp2x-w69r
- 2026-10-29 CISA SSVC decision points changed
References
More edgelesssys vulnerabilities
- TI-2026-64974 Edgeless Systems Contrast through 1.20.0 Denial of Service via ciphertextContainer CVSS 4.0MEDIUM 5.3
- TI-2026-64973 Contrast before 1.16.0 Remote Attestation Relay Attack CVSS 4.0CRITICAL 9.1
- TI-2026-64976 Contrast before 1.19.1 CopyFile Policy Symlink Subversion CVSS 4.0HIGH 8.6
- TI-2026-64971 Contrast before 1.23.1 Image Substitution via Policy Generation CVSS 4.0HIGH 8.6
- TI-2026-71174 Contrast world-writable containerd config allows privilege escalation CVSS 4.0HIGH 8.5
- TI-2025-43536 Contrast before 1.8.1 Information Disclosure via Logging CVSS 4.0HIGH 8.5
Sources
- CVE-2026-116197 · CVE Program
- CVE-2026-116197 · NVD
- FIRST EPSS
- GHSA-xx94-cp2x-w69r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences