How severe is CVE-2026-40091?

CVE-2026-40091 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-40091 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40091?

CVE-2026-40091 affects Authzed Spicedb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40091?

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

Does CVE-2026-40091 have an EU (EUVD) identifier?

Yes. CVE-2026-40091 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22815.

When was CVE-2026-40091 published?

CVE-2026-40091 was published on 2026-04-15 and last updated on 2026-06-17.

CVE-2026-40091

CVE-2026-40091 is a medium-severity vulnerability in Authzed Spicedb with a CVSS 3.x base score of 6.0. 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-532.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22815
Weakness: CWE-532
Affected product: Authzed Spicedb
Published: 2026-04-15
Last modified: 2026-06-17

Description

SpiceDB is an open source database system for creating and managing security-critical application permissions. In versions 1.49.0 through 1.51.0, when SpiceDB starts with log level info, the startup "configuration" log will include the full datastore DSN, including the plaintext password, inside DatastoreConfig.URI. This issue has been fixed in version 1.51.1. If users are unable to immediately upgrade, they can work around this issue by changing the log level to warn or error.

Frequently asked questions

What is CVE-2026-40091?: SpiceDB is an open source database system for creating and managing security-critical application permissions. In versions 1.49.0 through 1.51.0, when SpiceDB starts with log level info, the startup "configuration" log will include the full datastore DSN, including the plaintext password, inside DatastoreConfig.URI. This issue has been fixed in version 1.51.1. If users are unable to immediately upgrade, they can work around this issue by changing the log level to warn or error.
How severe is CVE-2026-40091?: CVE-2026-40091 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-40091 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40091?: CVE-2026-40091 affects Authzed Spicedb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40091?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-40091 have an EU (EUVD) identifier?: Yes. CVE-2026-40091 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22815.
When was CVE-2026-40091 published?: CVE-2026-40091 was published on 2026-04-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:authzed:spicedb:*:*:*:*:*:*:*:*

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