CVE-2023-28640 — apiman-manager-api-rest-i…
MEDIUMCVE-2023-28640 is a medium-severity (CVSS 6.4) Improper Privilege Management vulnerability in io.apiman:apiman-manager-api-rest-impl. A fix is available for io.apiman:apiman-manager-api-rest-impl — see the affected versions and patch details below.
Permissions bypass in Apiman could enable authenticated attacker to unpermitted API Key
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-28640.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
io.apiman:apiman-manager-api-rest-implReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Impact
Due to a missing permissions check, an attacker with an authenticated Apiman Manager account may be able to gain access to API keys they do not have permission for if they correctly guess the URL. The URL includes Organisation ID, Client ID, and Client Version of the targeted non-permitted resource, and each of these can have arbitrary values.
While not trivial to exploit, it could be achieved by brute-forcing or guessing common names.
Access to the non-permitted API Keys could allow use of other users' resources without their permission (depending on the specifics of configuration, such as whether an API key is the only form of security).
Patches
Apiman 3.1.0.Final and later resolves this issue.
Workarounds
Only provide Apiman Manager accounts to known users, do not allow anonymous/unknown users to create an Apiman Manager account.
Note that this does not affect the Apiman Gateway.
References
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | io.apiman:apiman-manager-api-rest-impl | all versions | 3.1.0.Finalio.apiman:apiman-manager-api-rest-impl:3.1.0.Final |
Affected Products
apimanapimanDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.apiman:apiman-manager-api-rest-impl, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update io.apiman:apiman-manager-api-rest-impl to 3.1.0.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-28640 is resolved across your whole dependency graph.
Workarounds
Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.
Frequently Asked Questions
Is CVE-2023-28640 in your dependencies?
Find it across Maven, including transitive dependencies.