CVE-2026-71243

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

The backmeup npm package assembles shell command strings by directly concatenating its option values (name, source, destination, filter) - e.g. cmd = "mkdir -p " + path.join(info.destination, info.name) + "; " - and executes the resulting string through a shell via ssh2-exec (locally via child_process, or remotely via SSH when an ssh handle is supplied), rather than using execFile/spawn with an argument array.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

GitHub - adaltas/node-backmeup: Common functions for local or over ssh backup · GitHub

https://github.com/adaltas/node-backmeup

Vendor Advisories for CVE-2026-71243(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 30× in last 7d / 68× 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. 2026-08-20 01:39 UTCEG score recompute
  2. 2026-08-20 01:39 UTCGHSA enrichment
  3. 2026-08-19 17:04 UTCEPSS rescore
  4. 2026-08-19 13:34 UTCGHSA enrichment
  5. 2026-08-19 01:31 UTCEG score recompute
  6. 2026-08-19 01:31 UTCGHSA enrichment
  7. 2026-08-18 13:49 UTCEPSS rescore
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:26 UTCGHSA enrichment
  10. 2026-08-18 01:22 UTCEG score recompute
  11. 2026-08-18 01:22 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 13:17 UTCGHSA enrichment
  14. 2026-08-17 01:14 UTCEG score recompute
  15. 2026-08-17 01:14 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 13:10 UTCEG score recompute
  19. 2026-08-16 13:10 UTCGHSA enrichment
  20. 2026-08-16 02:15 UTCEPSS rescore
  21. 2026-08-16 01:06 UTCGHSA enrichment
  22. 2026-08-15 13:02 UTCEG score recompute
  23. 2026-08-15 13:02 UTCGHSA enrichment
  24. 2026-08-15 01:31 UTCEPSS rescore
  25. 2026-08-15 00:58 UTCGHSA enrichment
Show 43 more
  1. 2026-08-14 12:55 UTCGHSA enrichment
  2. 2026-08-14 00:51 UTCEG score recompute
  3. 2026-08-14 00:51 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 12:47 UTCGHSA enrichment
  6. 2026-08-13 00:43 UTCEG score recompute
  7. 2026-08-13 00:43 UTCGHSA enrichment
  8. 2026-08-12 13:51 UTCEPSS rescore
  9. 2026-08-12 12:40 UTCGHSA enrichment
  10. 2026-08-12 00:35 UTCEG score recompute
  11. 2026-08-12 00:35 UTCGHSA enrichment
  12. 2026-08-11 12:31 UTCGHSA enrichment
  13. 2026-08-11 00:28 UTCEG score recompute
  14. 2026-08-11 00:28 UTCGHSA enrichment
  15. 2026-08-11 00:00 UTCEPSS rescore
  16. 2026-08-10 12:24 UTCEG score recompute
  17. 2026-08-10 12:24 UTCGHSA enrichment
  18. 2026-08-10 12:02 UTCGHSA enrichment
  19. 2026-08-10 11:22 UTCEG score recompute
  20. 2026-08-10 11:22 UTCGHSA enrichment
  21. 2026-08-10 02:05 UTCGHSA enrichment
  22. 2026-08-09 14:02 UTCEG score recompute
  23. 2026-08-09 14:02 UTCGHSA enrichment
  24. 2026-08-09 13:47 UTCEPSS rescore
  25. 2026-08-09 01:58 UTCEG score recompute
  26. 2026-08-09 01:58 UTCGHSA enrichment
  27. 2026-08-08 16:37 UTCEPSS rescore
  28. 2026-08-08 13:54 UTCGHSA enrichment
  29. 2026-08-08 01:50 UTCEG score recompute
  30. 2026-08-08 01:50 UTCGHSA enrichment
  31. 2026-08-07 13:46 UTCGHSA enrichment
  32. 2026-08-07 01:43 UTCEG score recompute
  33. 2026-08-07 01:42 UTCGHSA enrichment
  34. 2026-08-06 13:47 UTCEPSS rescore
  35. 2026-08-06 13:39 UTCGHSA enrichment
  36. 2026-08-06 01:32 UTCGHSA enrichment
  37. 2026-08-05 13:29 UTCEG score recompute
  38. 2026-08-05 13:28 UTCGHSA enrichment
  39. 2026-08-05 13:08 UTCEG score recompute
  40. 2026-08-05 13:08 UTCGHSA enrichment
  41. 2026-08-05 11:26 UTCEG score recompute
  42. 2026-08-05 11:07 UTCEG score recompute
  43. 2026-08-05 11:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71243?
CVE-2026-71243 is a high vulnerability published on August 5, 2026. The backmeup npm package assembles shell command strings by directly concatenating its option values (name, source, destination, filter) - e.g. cmd = "mkdir -p " + path.join(info.destination, info.name) + "; " - and executes the resulting string through a shell via ssh2-exec (locally via…
When was CVE-2026-71243 disclosed?
CVE-2026-71243 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71243 actively exploited?
CVE-2026-71243 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 78.6% of all scored CVEs.
What is the CVSS score of CVE-2026-71243?
CVE-2026-71243 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-71243?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71243, 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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