CVE-2026-53929

MEDIUMPre-NVD 5.15.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (33rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source

Also known asEUVD-2026-38602 (ENISA EUVD) · GHSA-6mhr-74x2-98v9 (GitHub Security Advisories)Source: ENISA EUVD

5.1EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.1Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

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
5.1MEDIUMmedium confidence
EG Risk
23
EG Risk 23/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity51% × 45%
Impact severity (EG Severity): CVSS 5.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.1): severity, escalated by confirmed exploitation. This CVE's 5.1 is its impact severity (EG Severity), not escalated.

EG Severity
5.1 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 17, 2026

Last Modified

June 25, 2026

Advisory Details (1)

Auto-updated Jun 25, 2026
Fix named in the CVE record. Sources: github.
GitHub advisoryMentions a patch (unverified)

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
nocodb—
  • every version through 0.301.3: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 225 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 125 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  2. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  5. 2026-10-30 11:55 UTCOSV refresh
  6. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  7. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  8. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  9. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  10. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  11. 2026-10-25 14:20 UTCEG score recompute
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-10-22 21:27 UTCEG score recompute
  15. 2026-10-22 21:27 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  16. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-10-18 03:31 UTCEG score recompute
  22. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
Show 75 more
  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-10-12 15:57 UTCEG score recompute
  4. 2026-10-11 19:40 UTCEG score recompute
  5. 2026-10-11 16:55 UTCEG score recompute
  6. 2026-10-11 14:18 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  16. 2026-10-03 06:09 UTCOSV refresh
  17. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  20. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  22. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  24. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  26. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  27. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  28. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  29. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  30. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  31. 2026-09-14 03:08 UTCEG score recompute
  32. 2026-09-14 03:08 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  33. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  34. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  35. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  36. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  37. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  38. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  39. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  40. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  41. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  42. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  43. 2026-08-30 22:26 UTCEG score recompute
  44. 2026-08-30 22:25 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  45. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  46. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  47. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  48. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  49. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  50. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  51. 2026-08-25 05:26 UTCEG score recompute
  52. 2026-08-25 05:26 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  53. 2026-08-24 06:59 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  54. 2026-08-23 04:28 UTCEG score recompute
  55. 2026-08-23 04:28 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  56. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  57. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  58. 2026-08-21 06:45 UTCEG score recompute
  59. 2026-08-21 06:45 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  60. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  61. 2026-08-20 08:16 UTCEG score recompute
  62. 2026-08-20 08:16 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  63. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  64. 2026-08-19 08:12 UTCEG score recompute
  65. 2026-08-19 08:12 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  66. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  67. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  68. 2026-08-17 06:15 UTCEG score recompute
  69. 2026-08-17 06:15 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  70. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  71. 2026-08-16 07:48 UTCEG score recompute
  72. 2026-08-16 07:48 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9
  73. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  74. 2026-08-15 09:22 UTCEG score recompute
  75. 2026-08-15 09:22 UTCGHSA enrichmentGHSA-6mhr-74x2-98v9

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Frequently asked(5)

What is CVE-2026-53929?
CVE-2026-53929 is a medium-severity vulnerability; its CVE record was published on June 17, 2026. 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…
When was the CVE record for CVE-2026-53929 published?
The CVE record for CVE-2026-53929 was published on June 17, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 25, 2026; the record at its source may have been updated since.
Is CVE-2026-53929 actively exploited?
CVE-2026-53929 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53929?
CVE-2026-53929 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53929?
The CVE record for CVE-2026-53929 names the fix: "This vulnerability is fixed in 2026.05.1." The vendor advisories EchelonGraph has for CVE-2026-53929 are linked in the Vendor Advisories panel on this page.

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