Apple Container up to 0.12.2 Hostname Validator missing encryption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.6 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic has been found in Apple Container up to 0.12.2. Affected by this vulnerability is an unknown functionality of the component Hostname Validator. This manipulation causes missing encryption. This vulnerability is registered as CVE-2026-28909. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.
Details
A vulnerability classified as problematic was found in Apple Container up to 0.12.2. Affected by this vulnerability is some unknown processing of the component Hostname Validator. The manipulation with an unknown input leads to a missing encryption vulnerability. The CWE definition for the vulnerability is CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. As an impact it is known to affect confidentiality. The summary by CVE is:
Users who connect to malicious registries with hostnames matching the bypass patterns will have their registry credentials exposed in plaintext. This issue is fixed in container version 0.12.3.
It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-28909 since 03/03/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/01/2026). The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.
Upgrading to version 0.12.3 eliminates this vulnerability.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apple.com/
- Product: https://github.com/apple/container/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.7VulDB Meta Temp Score: 3.6
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Missing encryptionCWE: CWE-311 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Container 0.12.3
Timeline
03/03/2026 CVE reserved05/01/2026 Advisory disclosed
05/01/2026 VulDB entry created
05/01/2026 VulDB entry last update
Sources
Vendor: apple.comProduct: github.com
Advisory: GHSA-m5rp-xcpf-r8m7
Status: Confirmed
CVE: CVE-2026-28909 (🔒)
GCVE (CVE): GCVE-0-2026-28909
GCVE (VulDB): GCVE-100-360415
Entry
Created: 05/01/2026 07:46Changes: 05/01/2026 07:46 (57)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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