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MEDIUM severity

GHSA-m6f8-hjrv-mw5f apiman-manager-api-rest-i…

MEDIUM

GHSA-m6f8-hjrv-mw5f 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.

Apiman vulnerable to permissions bypass due to missing check on API key URL

Also known asCVE-2023-28640
Published
Mar 27, 2023
Updated
Sep 10, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 19, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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 GHSA-m6f8-hjrv-mw5f.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs28th percentile — riskier than 28% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-m6f8-hjrv-mw5f plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
io.apiman:apiman-manager-api-rest-impl

Real-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

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavenio.apiman:apiman-manager-api-rest-implall versions3.1.0.Finalio.apiman:apiman-manager-api-rest-impl:3.1.0.Final

Detection & mitigation playbook

Open-source dependency
  1. Detect

    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.

  2. 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 GHSA-m6f8-hjrv-mw5f is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-m6f8-hjrv-mw5f can be triaged on real exposure rather than presence alone.

Tailored to GHSA-m6f8-hjrv-mw5f. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### 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 configurati
O3 Security · Impact-Aware SCA

Is GHSA-m6f8-hjrv-mw5f in your dependencies?

O3 Security finds GHSA-m6f8-hjrv-mw5f across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-m6f8-hjrv-mw5f: Medium 6.4 severity | O3 Security