CVE-2026-8754

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-05-17. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
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 was detected in AstrBotDevs AstrBot up to 4.23.5. Impacted is the function post_file of the file astrbot/dashboard/routes/chat.py of the component File Upload Handler. The manipulation of the argument filename results in path traversal. It is possible to launch the attack remotely. The exploit is now public and may be used. Upgrading to version 4.23.6 is recommended to address this issue. The patch is identified as aaec41e5054569ceaa1113593a34da7568e2d211. You should upgrade the affected component.

CVSS v3
6.3
EG Score
6.3(medium)
EPSS
27.9%
KEV
Not listed

Published

May 17, 2026

Last Modified

May 18, 2026

Advisory Details (4)

Auto-updated May 17, 2026
No patch confirmed yet.
generic

Release v4.23.6 · AstrBotDevs/AstrBot · GitHub

https://github.com/AstrBotDevs/AstrBot/releases/tag/v4.23.6
generic

fix: prevent path traversal in file uploads (#7751) · AstrBotDevs/AstrBot@aaec41e · GitHub

https://github.com/AstrBotDevs/AstrBot/commit/aaec41e5054569ceaa1113593a34da7568e2d211
generic

GitHub - AstrBotDevs/AstrBot: AI Agent Assistant & development framework that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨ · GitHub

https://github.com/AstrBotDevs/AstrBot/
generic

Arbitrary File Write via Path Traversal in /api/chat/post_file endpoint · GitHub

https://gist.github.com/YLChen-007/054415c2b63e58813328bc879a90c504

Vendor Advisories for CVE-2026-8754(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)
PyPI(1)
PackageVulnerable rangeFixed inDependents
astrbot3.4.39 ... 4.9.2 (121 versions)4.23.6—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× 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 08:27 UTCEPSS rescore
  2. 2026-07-09 19:10 UTCEPSS rescore
  3. 2026-07-08 15:16 UTCEPSS rescore
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  14. 2026-06-30 23:22 UTCEPSS rescore
  15. 2026-06-29 21:13 UTCEG score recompute
  16. 2026-06-29 14:06 UTCEPSS rescore
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  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-27 21:28 UTCEG score recompute
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  21. 2026-06-26 20:00 UTCEG score recompute
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  1. 2026-06-22 14:25 UTCEPSS rescore
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  4. 2026-06-19 19:26 UTCEPSS rescore
  5. 2026-06-18 17:52 UTCEPSS rescore
  6. 2026-06-17 17:53 UTCEPSS rescore
  7. 2026-06-17 03:58 UTCEG score recompute
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  10. 2026-06-15 17:49 UTCEPSS rescore
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  18. 2026-06-12 20:32 UTCEG score recompute
  19. 2026-06-11 19:10 UTCEG score recompute
  20. 2026-06-11 14:00 UTCEPSS rescore
  21. 2026-06-10 22:19 UTCEPSS rescore
  22. 2026-06-10 17:47 UTCEG score recompute
  23. 2026-06-10 13:22 UTCEPSS rescore
  24. 2026-06-09 16:25 UTCEG score recompute
  25. 2026-06-08 15:00 UTCEG score recompute
  26. 2026-06-08 14:17 UTCEPSS rescore
  27. 2026-06-07 15:25 UTCEPSS rescore
  28. 2026-06-07 13:38 UTCEG score recompute
  29. 2026-06-06 13:47 UTCEPSS rescore
  30. 2026-06-06 12:15 UTCEG score recompute
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  35. 2026-06-04 09:30 UTCEG score recompute
  36. 2026-06-03 08:07 UTCEG score recompute
  37. 2026-06-02 20:13 UTCEPSS rescore
  38. 2026-06-02 06:44 UTCEG score recompute
  39. 2026-06-01 13:52 UTCEPSS rescore
  40. 2026-06-01 05:21 UTCEG score recompute
  41. 2026-05-31 22:30 UTCEPSS rescore
  42. 2026-05-31 00:16 UTCEPSS rescore
  43. 2026-05-29 13:44 UTCEPSS rescore
  44. 2026-05-28 13:44 UTCEPSS rescore
  45. 2026-05-27 13:40 UTCEPSS rescore
  46. 2026-05-26 13:44 UTCEPSS rescore
  47. 2026-05-26 07:18 UTCEPSS rescore
  48. 2026-05-20 22:38 UTCEPSS rescore
  49. 2026-05-20 11:52 UTCEG score recompute
  50. 2026-05-20 11:52 UTCGHSA enrichment
  51. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8754?
CVE-2026-8754 is a medium vulnerability published on May 17, 2026. A vulnerability was detected in AstrBotDevs AstrBot up to 4.23.5. Impacted is the function post_file of the file astrbot/dashboard/routes/chat.py of the component File Upload Handler. The manipulation of the argument filename results in path traversal. It is possible to launch the attack remotely.…
When was CVE-2026-8754 disclosed?
CVE-2026-8754 was first published in the National Vulnerability Database on May 17, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8754 actively exploited?
CVE-2026-8754 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8754?
CVE-2026-8754 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-8754?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8754, 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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