CVE-2026-81847

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory (severity: LOW) published 2026-08-28. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: Elevated riskExposed: 0

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

A vulnerability was found in MAA-AI MaaMCP up to 1.1.1.dev6+g2e4a41287. The affected element is the function save_pipeline/load_pipeline of the file pipeline_tools.py. Performing a manipulation results in path traversal. The attack can be initiated remotely. The exploit has been made public and could be used. The patch is named c93ef45cba75295eba26d9ff1ffb9202a91c6150. To fix this issue, it is recommended to deploy a patch.

CVSS v3
5.5
EG Score
5.5(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity55% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (4)

Auto-updated Aug 27, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

GitHub - MAA-AI/MaaMCP: 基于 MaaFramework 的 MCP 服务器 为 AI 助手提供 Android 设备和 Windows 桌面自动化能力 · GitHub

https://github.com/MAA-AI/MaaMCP/
github_commit

commit c93ef45cba75 (Zeeeepa/MaaMCP)

Fix landed in Zeeeepa/MaaMCP commit c93ef45cba75 — awaiting tagged release

https://github.com/Zeeeepa/MaaMCP/commit/c93ef45cba75295eba26d9ff1ffb9202a91c6150
generic

[security] open_pipeline_in_browser lacks path validation (adjacent to #31) · Issue #32 · MAA-AI/MaaMCP · GitHub

https://github.com/MAA-AI/MaaMCP/issues/32
generic

[Potential Vulnerability] Path traversal in save_pipeline and load_pipeline allows out-of-directory JSON file write and JSON file disclosure in MaaMCP · Issue #31 · MAA-AI/MaaMCP · GitHub

https://github.com/MAA-AI/MaaMCP/issues/31

Vendor Advisories for CVE-2026-81847(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 16× in last 7d / 16× 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 01:22 UTCEPSS rescore
  2. 2026-08-29 20:37 UTCEG score recompute
  3. 2026-08-29 20:37 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-28 20:40 UTCEG score recompute
  6. 2026-08-28 20:39 UTCGHSA enrichment
  7. 2026-08-28 20:24 UTCNVD updateCVSS v4 → 2
  8. 2026-08-28 19:45 UTCEG score recompute
  9. 2026-08-28 19:45 UTCGHSA enrichment
  10. 2026-08-28 19:36 UTCMITRE cvelistV5CVSS v4 → 5.1
  11. 2026-08-28 15:18 UTCEG score recompute
  12. 2026-08-28 15:17 UTCGHSA enrichment
  13. 2026-08-28 00:30 UTCEG score recompute
  14. 2026-08-28 00:26 UTCNVD updateCVSS v4 → 2
  15. 2026-08-27 23:23 UTCEG score recompute
  16. 2026-08-27 23:23 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81847?
CVE-2026-81847 is a medium vulnerability published on August 27, 2026. A vulnerability was found in MAA-AI MaaMCP up to 1.1.1.dev6+g2e4a41287. The affected element is the function savepipeline/loadpipeline of the file pipeline_tools.py. Performing a manipulation results in path traversal. The attack can be initiated remotely. The exploit has been made public and could…
When was CVE-2026-81847 disclosed?
CVE-2026-81847 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81847 actively exploited?
CVE-2026-81847 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 85.7% of all scored CVEs.
What is the CVSS score of CVE-2026-81847?
CVE-2026-81847 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-81847?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81847, 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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