How severe is CVE-2023-45810?

CVE-2023-45810 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-45810 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45810?

CVE-2023-45810 affects Openfga. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-45810?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-45810 published?

CVE-2023-45810 was published on 2023-10-17 and last updated on 2026-06-17.

CVE-2023-45810

CVE-2023-45810 is a medium-severity vulnerability in Openfga with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Openfga
Published: 2023-10-17
Last modified: 2026-06-17

Description

OpenFGA is a flexible authorization/permission engine built for developers and inspired by Google Zanzibar. Affected versions of OpenFGA are vulnerable to a denial of service attack. When a number of `ListObjects` calls are executed, in some scenarios, those calls are not releasing resources even after a response has been sent, and given a sufficient call volume the service as a whole becomes unresponsive. This issue has been addressed in version 1.3.4 and the upgrade is considered backwards compatible. There are no known workarounds for this vulnerability.

Frequently asked questions

What is CVE-2023-45810?: OpenFGA is a flexible authorization/permission engine built for developers and inspired by Google Zanzibar. Affected versions of OpenFGA are vulnerable to a denial of service attack. When a number of `ListObjects` calls are executed, in some scenarios, those calls are not releasing resources even after a response has been sent, and given a sufficient call volume the service as a whole becomes unresponsive. This issue has been addressed in version 1.3.4 and the upgrade is considered backwards compatible. There are no known workarounds for this vulnerability.
How severe is CVE-2023-45810?: CVE-2023-45810 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-45810 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45810?: CVE-2023-45810 affects Openfga. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-45810?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-45810 published?: CVE-2023-45810 was published on 2023-10-17 and last updated on 2026-06-17.

References

https://github.com/openfga/openfga/security/advisories/GHSA-hr4f-6jh8-f2vq

Affected products (1)

cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*

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