CVE-2023-28640: Apiman is a flexible and open source API Management platform

Routine

MEDIUM 6.4DOWNGRADE

CVE-2023-28640 is a medium-severity flaw (CVSS 6.4) affecting apiman. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Apiman is a flexible and open source API Management platform. 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, which includes Organisation ID, Client ID, and Client Version of the targeted non-permitted resource. While not trivial to exploit, it could be achieved by brute-forcing or guessing common na

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 73%)
CISA exploited list	No
Weakness	CWE-269, CWE-862
Published	2023-03-27
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: apiman

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-03-27 21:15 UTCPublished CVE record published
2026-06-17 05:48 UTCUpdated Record last modified

apiman apiman DOWNGRADE

Affected: 3.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.0

1. Check installed version

apt-cache policy apiman || rpm -q apiman || apiman --version

2. No fixed release: DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)

apt-cache madison apiman sudo apt install apiman=<VERSION_BEFORE_3.0.0> sudo apt-mark hold apiman

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list apiman sudo dnf downgrade apiman-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add apiman

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-28640?

apiman: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-28640 being exploited?

CVE-2023-28640 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-28640 affect?

CVE-2023-28640 affects apiman. Severity is medium (CVSS 6.4). Apiman is a flexible and open source API Management platform. 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 correc

How urgent is CVE-2023-28640?

Priority 29/100. No elevated risk signals yet.

Related CVEs

CVE-2022-47551 MEDIUM 6.5 UPGRADE Apiman 1.5.7 through 2.2.3.Final has insufficient checks for read permissions within the Apiman Manager REST A

References

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