CVE-2026-55873

mediumCVSS 4.3covered by 1 sourcefirst seen 2026-07-08

SeaweedFS is a distributed storage system. In versions 4.08 through 4.33, requests signed with SigV4 service s3tables are routed to the S3Tables management API where authorization collapses account-less S3 identities into the shared admin account and fails open, allowing an authenticated low-privileged S3 user to enumerate administrator-owned table bucket names and ARNs. This issue is fixed in version 4.34.

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Exploitation outlook

Low exploitation risk0.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-55873: SeaweedFS is a distributed storage system. In versions 4.08 through 4.33, requests signed with…nvd · 2026-07-08

External references

NVD record for CVE-2026-55873

CVE.org record

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