CVE-2026-49984

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 69% 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
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.7Exploit: NoneExposed: 0

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

Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.23, the local internal-storage backend validates user-supplied paths for .. traversal before it converts Windows-style backslashes to forward slashes. An attacker can therefore smuggle a traversal sequence past the guard using backslashes (..\..\..\); the guard sees a harmless string, and the path is only rewritten to ../../../ after validation, immediately before the file is opened. Any authenticated user who can view an execution (the lowest-privilege role) can call GET /api/v1/{tenant}/executions/{executionId}/file?path=… and read any file on the server filesystem readable by the Kestra process, outside the storage sandbox and across every tenant and namespace. This includes the embedded H2 database (all flows, all users, all stored secrets), internal storage of every other tenant/namespace, mounted secret files, and the process environment (/proc/self/environ) which contains configured database and secret-backend credentials. It is a complete breach of Kestra's storage isolation and multi-tenancy boundary. This vulnerability is fixed in 1.0.45 and 1.3.23.

CVSS v3
7.7
EG Score
7.7(medium)
EPSS
30.7%
KEV
Not listed

Published

June 26, 2026

Last Modified

July 1, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Path traversal in `LocalStorage` allows any authenticated user to read arbitrary server files via the execution file-download API (`\..\` bypasses the `..` guard) · Advisory · kestra-io/kestra · GitHub

https://github.com/kestra-io/kestra/security/advisories/GHSA-qw4v-6w32-xx9h

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 43× 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. 2026-07-11 11:46 UTCEG score recompute
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-10 23:48 UTCEG score recompute
  4. 2026-07-10 11:49 UTCEG score recompute
  5. 2026-07-09 23:51 UTCEG score recompute
  6. 2026-07-09 19:10 UTCEPSS rescore
  7. 2026-07-09 11:54 UTCEG score recompute
  8. 2026-07-08 23:55 UTCEG score recompute
  9. 2026-07-08 15:16 UTCEPSS rescore
  10. 2026-07-08 11:58 UTCEG score recompute
  11. 2026-07-07 23:54 UTCEG score recompute
  12. 2026-07-07 13:46 UTCEPSS rescore
  13. 2026-07-07 11:57 UTCEG score recompute
  14. 2026-07-06 23:59 UTCEG score recompute
  15. 2026-07-06 16:27 UTCEPSS rescore
  16. 2026-07-06 12:01 UTCEG score recompute
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-06 00:02 UTCEG score recompute
  19. 2026-07-05 12:03 UTCEG score recompute
  20. 2026-07-05 00:05 UTCEG score recompute
  21. 2026-07-04 12:06 UTCEG score recompute
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-04 00:06 UTCEG score recompute
  24. 2026-07-03 12:09 UTCEG score recompute
  25. 2026-07-02 23:39 UTCEG score recompute
Show 18 more
  1. 2026-07-02 11:41 UTCEG score recompute
  2. 2026-07-01 23:39 UTCEG score recompute
  3. 2026-07-01 15:07 UTCEPSS rescore
  4. 2026-07-01 11:41 UTCEG score recompute
  5. 2026-06-30 23:44 UTCEG score recompute
  6. 2026-06-30 23:22 UTCEPSS rescore
  7. 2026-06-30 11:27 UTCEG score recompute
  8. 2026-06-29 23:27 UTCEG score recompute
  9. 2026-06-29 11:30 UTCEG score recompute
  10. 2026-06-28 23:33 UTCEG score recompute
  11. 2026-06-28 14:07 UTCEPSS rescore
  12. 2026-06-28 11:35 UTCEG score recompute
  13. 2026-06-28 04:56 UTCEPSS rescore
  14. 2026-06-28 04:56 UTCEPSS rescore
  15. 2026-06-27 23:38 UTCEG score recompute
  16. 2026-06-27 11:40 UTCEG score recompute
  17. 2026-06-26 23:42 UTCEG score recompute
  18. 2026-06-26 23:42 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-49984?
CVE-2026-49984 is a high vulnerability published on June 26, 2026. Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.23, the local internal-storage backend validates user-supplied paths for .. traversal before it converts Windows-style backslashes to forward slashes. An attacker can therefore smuggle a traversal sequence past…
When was CVE-2026-49984 disclosed?
CVE-2026-49984 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49984 actively exploited?
CVE-2026-49984 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-49984?
CVE-2026-49984 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-49984?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49984, 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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