CVE-2026-13509

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-06-29. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0

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

A vulnerability has been found in RAGapp up to 0.1.5. Affected is the function FileHandler.upload_file/FileHandler.remove_file of the file src/ragapp/backend/controllers/files.py of the component Knowledge File Handler. Such manipulation leads to path traversal. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The pull request to fix this issue awaits acceptance.

CVSS v3
6.3
EG Score
6.3(high)
EPSS
21.2%
KEV
Not listed

Published

June 28, 2026

Last Modified

June 29, 2026

Advisory Details (3)

Auto-updated Jun 29, 2026
🔬 Proof of concept available. No patch confirmed yet. Sources: github_pr.
github_pr

Fix knowledge file path traversal

Upstream fix in progress (PR #294 · ragapp/ragapp, state=open)

https://github.com/ragapp/ragapp/pull/294
generic🟡 PoC Available

Path traversal in knowledge file upload allows writing files outside data · Issue #293 · ragapp/ragapp · GitHub

https://github.com/ragapp/ragapp/issues/293
generic

GitHub - ragapp/ragapp: The easiest way to use Agentic RAG in any enterprise · GitHub

https://github.com/ragapp/ragapp/

Vendor Advisories for CVE-2026-13509(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 32× 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. 2026-07-07 03:56 UTCEG score recompute
  2. 2026-07-07 03:56 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 05:55 UTCEG score recompute
  5. 2026-07-06 05:55 UTCGHSA enrichment
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 07:53 UTCEG score recompute
  8. 2026-07-05 07:53 UTCGHSA enrichment
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 09:59 UTCEG score recompute
  12. 2026-07-04 09:59 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-03 12:05 UTCEG score recompute
  15. 2026-07-03 12:04 UTCGHSA enrichment
  16. 2026-07-02 13:51 UTCEG score recompute
  17. 2026-07-02 13:51 UTCGHSA enrichment
  18. 2026-07-01 15:56 UTCEG score recompute
  19. 2026-07-01 15:56 UTCGHSA enrichment
  20. 2026-07-01 15:06 UTCEPSS rescore
  21. 2026-07-01 15:06 UTCEPSS rescore
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 18:02 UTCEG score recompute
  24. 2026-06-30 18:02 UTCGHSA enrichment
  25. 2026-06-29 20:07 UTCEG score recompute
Show 7 more
  1. 2026-06-29 20:07 UTCGHSA enrichment
  2. 2026-06-29 17:26 UTCNVD updateCVSS v4 → 2.1
  3. 2026-06-29 16:13 UTCMITRE cvelistV5CVSS v4 → 5.3
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-29 00:03 UTCNVD updateCVSS v4 → 2.1
  6. 2026-06-28 22:13 UTCEG score recompute
  7. 2026-06-28 22:12 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13509?
CVE-2026-13509 is a medium vulnerability published on June 28, 2026. A vulnerability has been found in RAGapp up to 0.1.5. Affected is the function FileHandler.uploadfile/FileHandler.removefile of the file src/ragapp/backend/controllers/files.py of the component Knowledge File Handler. Such manipulation leads to path traversal. The attack can be executed remotely.…
When was CVE-2026-13509 disclosed?
CVE-2026-13509 was first published in the National Vulnerability Database on June 28, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13509 actively exploited?
CVE-2026-13509 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13509?
CVE-2026-13509 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-13509?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13509, 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.

Dependency Blast Radius

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