CVE-2026-45377

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 81% 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
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

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 normal download_your_data flow requires the requester to be logged in as the export owner, but the resulting Active Storage blob redirect URL can be replayed without authentication by anyone who obtains it. This is because Decidim::DownloadYourDataController#download_file authenticates the export owner but redirects to a signed Active Storage blob URL that is no longer bound to the owner session. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

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
Severity65% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

July 13, 2026

Last Modified

August 1, 2026

Advisory Details (2)

Auto-updated Jul 31, 2026
Patch available. Sources: github_pr, github.
github Patch Available

Private exports can be downloaded through reusable links · Advisory · decidim/decidim · GitHub

https://github.com/decidim/decidim/security/advisories/GHSA-767h-63j4-5226
github_pr

Introduce PrivateDownload logic for some downloads

Fix merged in decidim/decidim PR #16680 on 2026-05-08 — awaiting tagged release

https://github.com/decidim/decidim/pull/16680

Vendor Advisories for CVE-2026-45377(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 rangeFixed inDependents
decidim-core0.32.0.rc1, 0.32.0.rc2, 0.32.0.rc30.32.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 49× 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. 2026-08-30 05:29 UTCEG score recompute
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-28 21:41 UTCEPSS rescore
  4. 2026-08-27 14:25 UTCEPSS rescore
  5. 2026-08-27 14:00 UTCEG score recompute
  6. 2026-08-26 14:46 UTCEPSS rescore
  7. 2026-08-26 02:23 UTCEG score recompute
  8. 2026-08-25 13:49 UTCEPSS rescore
  9. 2026-08-24 22:37 UTCEG score recompute
  10. 2026-08-23 20:38 UTCEG score recompute
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-22 18:39 UTCEG score recompute
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-21 16:40 UTCEG score recompute
  15. 2026-08-20 22:55 UTCEPSS rescore
  16. 2026-08-20 14:41 UTCEG score recompute
  17. 2026-08-19 17:04 UTCEPSS rescore
  18. 2026-08-19 12:29 UTCEG score recompute
  19. 2026-08-18 13:48 UTCEPSS rescore
  20. 2026-08-18 10:29 UTCEG score recompute
  21. 2026-08-17 13:47 UTCEPSS rescore
  22. 2026-08-17 07:49 UTCEG score recompute
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 05:50 UTCEG score recompute
  25. 2026-08-16 02:14 UTCEPSS rescore
Show 28 more
  1. 2026-08-15 03:52 UTCEG score recompute
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-14 01:52 UTCEG score recompute
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-12 23:54 UTCEG score recompute
  6. 2026-08-12 13:51 UTCEPSS rescore
  7. 2026-08-11 21:55 UTCEG score recompute
  8. 2026-08-11 00:00 UTCEPSS rescore
  9. 2026-08-09 17:56 UTCEG score recompute
  10. 2026-08-09 13:46 UTCEPSS rescore
  11. 2026-08-08 16:37 UTCEPSS rescore
  12. 2026-08-08 15:58 UTCEG score recompute
  13. 2026-08-07 13:58 UTCEG score recompute
  14. 2026-08-06 13:47 UTCEPSS rescore
  15. 2026-08-06 11:59 UTCEG score recompute
  16. 2026-08-05 19:17 UTCEPSS rescore
  17. 2026-08-05 10:00 UTCEG score recompute
  18. 2026-08-04 15:10 UTCEPSS rescore
  19. 2026-08-04 10:38 UTCEPSS rescore
  20. 2026-08-04 08:01 UTCEG score recompute
  21. 2026-08-03 10:36 UTCEPSS rescore
  22. 2026-08-02 02:33 UTCEG score recompute
  23. 2026-08-02 02:27 UTCEPSS rescore
  24. 2026-08-01 00:34 UTCEG score recompute
  25. 2026-07-30 23:03 UTCEG score recompute
  26. 2026-07-26 11:53 UTCEG score recompute
  27. 2026-07-23 03:16 UTCEG score recompute
  28. 2026-07-13 17:08 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45377?
CVE-2026-45377 is a medium vulnerability 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 normal downloadyourdata flow requires the requester to be logged in as the export owner, but the resulting Active Storage blob redirect URL can be replayed without…
When was CVE-2026-45377 disclosed?
CVE-2026-45377 was first published in the National Vulnerability Database on July 13, 2026, with the most recent update on August 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45377 actively exploited?
CVE-2026-45377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.6% of all scored CVEs.
What is the CVSS score of CVE-2026-45377?
CVE-2026-45377 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-45377?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45377, 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.

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