CVE-2026-44888

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 77% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

Pi.Alert is a WIFI / LAN intruder detector with web service monitoring. Prior to 2026-05-07, Pi.Alert's SaveConfigFile() endpoint writes user-supplied numeric config values (e.g., SMTP_PORT) directly into pialert.conf without validation. Since pialert.conf is loaded via Python's exec() every 3–5 minutes by the background cron process, an attacker can inject arbitrary Python code and achieve unauthenticated OS-level RCE. On default installations (PIALERT_WEB_PROTECTION = False), no credentials are required. This vulnerability is fixed in 2026-05-07.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
23.4%
KEV
Not listed

Published

May 27, 2026

Last Modified

May 29, 2026

Advisory Details (1)

Auto-updated Jun 20, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Unauthenticated RCE via Python Config File Injection in SaveConfigFile() (Interger) · Advisory · leiweibau/Pi.Alert · GitHub

https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 70× 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 188 total refreshes for this CVE.

  1. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-13 22:30 UTCEPSS rescore
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  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-11 22:57 UTCEG score recompute
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  11. 2026-07-08 15:16 UTCEPSS rescore
  12. 2026-07-07 13:46 UTCEPSS rescore
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  17. 2026-07-02 23:43 UTCEG score recompute
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  22. 2026-06-30 23:22 UTCEPSS rescore
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  1. 2026-06-29 14:06 UTCEPSS rescore
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  3. 2026-06-29 13:56 UTCEG score recompute
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  20. 2026-06-26 16:59 UTCEG score recompute
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  24. 2026-06-25 13:49 UTCEPSS rescore
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  26. 2026-06-25 13:11 UTCEG score recompute
  27. 2026-06-25 08:49 UTCEG score recompute
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  29. 2026-06-24 14:05 UTCEPSS rescore
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  37. 2026-06-18 17:52 UTCEPSS rescore
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  39. 2026-06-18 03:38 UTCEG score recompute
  40. 2026-06-17 22:52 UTCEG score recompute
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  42. 2026-06-17 17:53 UTCEPSS rescore
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  44. 2026-06-17 09:38 UTCEG score recompute
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  47. 2026-06-16 20:14 UTCEG score recompute
  48. 2026-06-16 17:52 UTCEPSS rescore
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  50. 2026-06-16 11:16 UTCEG score recompute
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  54. 2026-06-15 17:49 UTCEPSS rescore
  55. 2026-06-15 13:17 UTCEG score recompute
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  64. 2026-06-13 23:00 UTCEPSS rescore
  65. 2026-06-13 19:40 UTCEG score recompute
  66. 2026-06-13 12:02 UTCEG score recompute
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  69. 2026-06-12 23:12 UTCEPSS rescore
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  71. 2026-06-12 22:59 UTCEG score recompute
  72. 2026-06-12 18:37 UTCEG score recompute
  73. 2026-06-12 14:16 UTCEG score recompute
  74. 2026-06-12 09:56 UTCEG score recompute
  75. 2026-06-12 05:34 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-44888?
CVE-2026-44888 is a critical vulnerability published on May 27, 2026. Pi.Alert is a WIFI / LAN intruder detector with web service monitoring. Prior to 2026-05-07, Pi.Alert's SaveConfigFile() endpoint writes user-supplied numeric config values (e.g., SMTP_PORT) directly into pialert.conf without validation. Since pialert.conf is loaded via Python's exec() every 3–5…
When was CVE-2026-44888 disclosed?
CVE-2026-44888 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44888 actively exploited?
CVE-2026-44888 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44888?
CVE-2026-44888 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-44888?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44888, 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.

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