CVE-2026-54352

CRITICALPre-NVD 9.69.6
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (40th 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
Trending — 3 sources updated this weekElevated
9.6EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.6Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Budibase is an open-source low-code platform. Prior to 3.39.9, POST /api/pwa/process-zip at packages/server/src/api/routes/static.ts:24 accepts a builder-uploaded .zip, extracts it with [email protected] into a temp directory, then for each entry listed in icons.json validates the icon path, opens it, and streams the bytes into MinIO. The resulting object is served back via GET /api/assets/{appId}/pwa/{uuid}.png. [email protected] preserves absolute symlink targets when restoring symlink entries. The icon-source validator at packages/server/src/api/controllers/static/index.ts:259-268 resolves the icon source string against baseDir (path.resolve), checks resolvedSrc.startsWith(baseDir + path.sep) against that string, and calls fs.existsSync(resolvedSrc) which follows symbolic links to confirm the target exists. None of the three calls reject symbolic-link entries. packages/backend-core/src/objectStore/objectStore.ts:302 then calls (await fsp.open(path)).createReadStream() on the resolved path. fsp.open follows the symlink, the target file's bytes stream into MinIO, and the response of the asset-fetch endpoint returns those bytes verbatim. Result: a workspace-level builder reads any file the server process can open. This vulnerability is fixed in 3.39.9.

CVSS v3
9.6
EG Score
9.6CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity96% × 45%
The EG Score, 9.6 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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 22, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Oct 7, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

Arbitrary file read by workspace-builder via PWA-zip symlink upload · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-w7mq-r738-x278

Vendor Advisories for CVE-2026-54352(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@budibase/server—
  • every version up to 3.39.9: fixed in 3.39.9
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 33× 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 147 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 47 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 13:44 UTCEG score recompute
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-12 15:33 UTCEG score recompute
  4. 2026-10-11 19:39 UTCEG score recompute
  5. 2026-10-11 16:54 UTCEG score recompute
  6. 2026-10-11 14:18 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-10-08 05:05 UTCOSV refresh
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  24. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.5% · 41st percentile
Show 75 more
  1. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  3. 2026-09-18 11:12 UTCEG score recompute
  4. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  6. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  7. 2026-09-14 02:07 UTCEG score recompute
  8. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-09-13 12:28 UTCEG score recompute
  10. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  13. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  15. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  18. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-08-30 20:28 UTCEG score recompute
  20. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  22. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  25. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  26. 2026-08-24 22:13 UTCEG score recompute
  27. 2026-08-24 13:55 UTCEG score recompute
  28. 2026-08-23 03:22 UTCEG score recompute
  29. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  30. 2026-08-22 14:54 UTCEG score recompute
  31. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  32. 2026-08-21 01:37 UTCEG score recompute
  33. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  34. 2026-08-20 07:49 UTCEG score recompute
  35. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  36. 2026-08-19 04:51 UTCEG score recompute
  37. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  38. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  39. 2026-08-16 15:57 UTCEG score recompute
  40. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  41. 2026-08-16 02:59 UTCEG score recompute
  42. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  43. 2026-08-15 05:19 UTCEG score recompute
  44. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  45. 2026-08-13 23:01 UTCEG score recompute
  46. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  47. 2026-08-12 14:05 UTCEG score recompute
  48. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  49. 2026-08-11 16:21 UTCEG score recompute
  50. 2026-08-11 03:23 UTCEG score recompute
  51. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  52. 2026-08-09 16:46 UTCEG score recompute
  53. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  54. 2026-08-08 19:08 UTCEG score recompute
  55. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  56. 2026-08-07 17:10 UTCEG score recompute
  57. 2026-08-06 15:13 UTCEG score recompute
  58. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  59. 2026-08-05 21:54 UTCEG score recompute
  60. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  61. 2026-08-04 15:15 UTCEG score recompute
  62. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  63. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  64. 2026-08-03 14:18 UTCEG score recompute
  65. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  66. 2026-08-02 06:29 UTCEG score recompute
  67. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  68. 2026-08-01 04:25 UTCEG score recompute
  69. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  70. 2026-07-30 19:22 UTCEG score recompute
  71. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  72. 2026-07-30 02:40 UTCEG score recompute
  73. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  74. 2026-07-29 01:20 UTCEG score recompute
  75. 2026-07-28 15:37 UTCEPSS rescoreEPSS 0.4% · 29th percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-54352?
CVE-2026-54352 is a critical-severity vulnerability; its CVE record was published on June 22, 2026. Budibase is an open-source low-code platform. Prior to 3.39.9, POST /api/pwa/process-zip at packages/server/src/api/routes/static.ts:24 accepts a builder-uploaded .zip, extracts it with [email protected] into a temp directory, then for each entry listed in icons.json validates the icon path, opens…
When was the CVE record for CVE-2026-54352 published?
The CVE record for CVE-2026-54352 was published on June 22, 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 30, 2026; the record at its source may have been updated since.
Is CVE-2026-54352 actively exploited?
CVE-2026-54352 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54352?
CVE-2026-54352 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54352?
A fix for CVE-2026-54352 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54352 are linked in the Vendor Advisories panel on this page.

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