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CVE-2026-53927 nocodb CVE debrief

CVE-2026-53927 is a vulnerability in the NocoDB software, which is used for building databases as spreadsheets. The spreadsheet-fetch endpoint (axiosRequestMake) in NocoDB accepted URLs with permitted extensions anywhere in the string, bypassing a hand-rolled regex blocklist. This blocklist omitted certain IP address ranges, including 127.0.0.0/8 and 169.254.0.0/16. As a result, an attacker could craft a URL to reach the cloud-metadata endpoint. This vulnerability has been fixed in version 2026.05.1 of NocoDB.

Vendor
nocodb
Product
Unknown
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-23
Original CVE updated
2026-06-25
Advisory published
2026-06-23
Advisory updated
2026-06-25

Who should care

Defenders of systems using NocoDB should be aware of this vulnerability. Specifically, those who have not updated to version 2026.05.1 or later are at risk. This vulnerability could potentially allow attackers to access sensitive cloud metadata.

Technical summary

The spreadsheet-fetch endpoint in NocoDB did not properly validate URLs, allowing for crafted URLs to bypass security restrictions. The regex blocklist used to filter URLs did not account for all possible IP address ranges, specifically allowing access to 127.0.0.0/8 and 169.254.0.0/16. This oversight enabled attackers to reach the cloud-metadata endpoint using a specially crafted URL. The vulnerability was addressed in NocoDB version 2026.05.1.

Defensive priority

Defenders should prioritize updating NocoDB to version 2026.05.1 or later. Additionally, they should monitor for any suspicious activity related to the spreadsheet-fetch endpoint and ensure that all URLs being processed are properly validated.

Recommended defensive actions

  • Update NocoDB to version 2026.05.1 or later.
  • Monitor the spreadsheet-fetch endpoint for suspicious activity.
  • Ensure proper URL validation for all requests processed by NocoDB.
  • Review and update security configurations to prevent similar vulnerabilities.
  • Conduct regular security audits to identify potential issues.

Evidence notes

The CVE-2026-53927 record was obtained from the National Vulnerability Database (NVD). The vulnerability details were provided by the NVD and a GitHub security advisory. The information indicates that the vulnerability was fixed in NocoDB version 2026.05.1.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53927 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53927

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-53927 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53927

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.