CVE-2026-45378

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (34th 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
Elevated
7.5EG
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: 0.4%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Decidim is a participatory democracy framework. Prior to 0.30.9, from 0.31.0 before 0.31.5, and in 0.32.0.rc1 before 0.32.0.rc2, the identity-document verification admin UI embeds verification_attachment blobs through reusable signed Active Storage disk URLs, allowing anyone who obtains a URL to download the scanned document without an authenticated Decidim session until the signature expires. Verification-document images are rendered with variant_url(...), which produces signed /rails/active_storage/disk/... links instead of routing the file through an authorization-checking controller. Because Decidim configures Active Storage service URLs to remain valid for seven days, the URL itself becomes the credential for that period. The affected files are verification_attachment blobs on Decidim::Authorization, and the admin review pages embed those signed URLs directly into the HTML for pending and confirmation views. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100

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)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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: 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
0.4%
EPSS %ILE
34th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

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 yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

July 13, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

Verification documents can be downloaded through reusable links · Advisory · decidim/decidim · GitHub

https://github.com/decidim/decidim/security/advisories/GHSA-3mvf-82qp-8qh5

Vendor Advisories for CVE-2026-45378(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)
RubyGems(1)
PackageVulnerable rangeFix by version rangeDependents
decidim-verifications0.32.0.rc1, 0.32.0.rc2, 0.32.0.rc3
  • every version up to 0.30.9: fixed in 0.30.9
  • 0.31.0.rc1 up to 0.31.5: fixed in 0.31.5
  • 0.32.0.rc1 up to 0.32.0: fixed in 0.32.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 30× 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.

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

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RubyGems:decidim-verifications

Frequently asked(5)

What is CVE-2026-45378?
CVE-2026-45378 is a high-severity vulnerability; its CVE record was published on July 13, 2026. Decidim is a participatory democracy framework. Prior to 0.30.9, from 0.31.0 before 0.31.5, and in 0.32.0.rc1 before 0.32.0.rc2, the identity-document verification admin UI embeds verificationattachment blobs through reusable signed Active Storage disk URLs, allowing anyone who obtains a URL to…
When was the CVE record for CVE-2026-45378 published?
The CVE record for CVE-2026-45378 was published on July 13, 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 September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-45378 actively exploited?
CVE-2026-45378 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45378?
CVE-2026-45378 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-45378?
A fix for CVE-2026-45378 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-45378 are linked in the Vendor Advisories panel on this page.

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