CVE-2026-13509

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM 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
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 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(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
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 8× in last 7d / 54× 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.

Showing the most recent 100 of 161 total refreshes for this CVE.

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

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 0% probability of exploitation in the next 30 days, which ranks it in the top 64.2% of all scored CVEs.
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

Explore the affected products and dependency analysis for CVE-2026-13509

Explore →

Is Your Infrastructure Affected by CVE-2026-13509?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs