CVE-2026-53929

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 79% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, with NC_SECURE_ATTACHMENTS=true, an authenticated uploader could deliver .html or .svg attachments that the browser rendered inline from the NocoDB origin instead of forcing a download. The signed attachment handler stored response-header overrides under PascalCase keys (ResponseContentDisposition, ResponseContentType) while the controller that served the file read them under lowercase-hyphen names (response-content-disposition). The mismatch dropped the Content-Disposition: attachment header, leaving Express to auto-render .html, .svg, and similar inline. This vulnerability is fixed in 2026.05.1.

CVSS v3
5.1
EG Score
5.1(medium)
EPSS
20.7%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 25, 2026

Advisory Details (1)

Auto-updated Jun 25, 2026
Patch available. Sources: github.
github Patch Available

Stored Cross-Site Scripting via Secure Attachment · Advisory · nocodb/nocodb · GitHub

https://github.com/nocodb/nocodb/security/advisories/GHSA-6mhr-74x2-98v9

Vendor Advisories for CVE-2026-53929(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
npmnocodb—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
nocodb———

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 22× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 21:57 UTCEG score recompute
  2. 2026-07-06 21:57 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 20:10 UTCEG score recompute
  8. 2026-07-05 20:10 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 21:43 UTCEG score recompute
  12. 2026-07-04 21:43 UTCGHSA enrichment
  13. 2026-07-03 23:16 UTCEG score recompute
  14. 2026-07-03 23:16 UTCGHSA enrichment
  15. 2026-07-03 00:44 UTCEG score recompute
  16. 2026-07-03 00:43 UTCGHSA enrichment
  17. 2026-07-02 02:16 UTCEG score recompute
  18. 2026-07-02 02:16 UTCGHSA enrichment
  19. 2026-07-01 15:07 UTCEPSS rescore
  20. 2026-07-01 03:48 UTCEG score recompute
  21. 2026-07-01 03:48 UTCGHSA enrichment
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 05:21 UTCEG score recompute
  24. 2026-06-30 05:21 UTCGHSA enrichment
  25. 2026-06-29 06:54 UTCEG score recompute
Show 22 more
  1. 2026-06-29 06:54 UTCGHSA enrichment
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 08:27 UTCEG score recompute
  4. 2026-06-28 08:27 UTCGHSA enrichment
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-27 10:00 UTCEG score recompute
  8. 2026-06-27 10:00 UTCGHSA enrichment
  9. 2026-06-27 03:08 UTCEPSS rescore
  10. 2026-06-26 11:33 UTCEG score recompute
  11. 2026-06-26 11:33 UTCGHSA enrichment
  12. 2026-06-25 13:49 UTCEPSS rescore
  13. 2026-06-25 10:31 UTCEG score recompute
  14. 2026-06-25 10:31 UTCGHSA enrichment
  15. 2026-06-24 14:05 UTCEPSS rescore
  16. 2026-06-24 12:03 UTCEG score recompute▲ 5.10
  17. 2026-06-24 12:02 UTCGHSA enrichment
  18. 2026-06-24 12:01 UTCNVD updateCVSS v3 → 5.1 · CVSS v4 → 5.1
  19. 2026-06-23 04:50 UTCGHSA enrichment
  20. 2026-06-20 09:42 UTCGHSA enrichment
  21. 2026-06-17 14:45 UTCEG score recompute
  22. 2026-06-17 14:45 UTCGHSA enrichment

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-53929?
CVE-2026-53929 is a medium vulnerability published on June 17, 2026. NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, with NCSECUREATTACHMENTS=true, an authenticated uploader could deliver .html or .svg attachments that the browser rendered inline from the NocoDB origin instead of forcing a download. The signed attachment handler stored…
When was CVE-2026-53929 disclosed?
CVE-2026-53929 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53929 actively exploited?
CVE-2026-53929 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53929?
CVE-2026-53929 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-53929?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53929, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53929

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