CVE-2026-39902

waiting for further signalsZero needs more public information before it can validate it.

GHSA-c4qp-j9r9-fq24 ↗EUVD-2026-109088 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
cacti cacti/cacti <= 1.2.30
fixed in 1.2.31
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
ETK-2026-2570Zero's internal tracking ID, independent of the CVE number., permanent identifier
1h 19msince last run
45mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0hwaiting for further signals+32h37m
0
+2h
+4h
+6h
+8h
+10h

description

Cacti releases before 1.2.31 insufficiently restrict shell-control characters in data-input string configuration. An authenticated administrator may use this flaw to cause commands to run through the affected input handling.

mitigation

Upgrade Cacti to version 1.2.31 or later. Restrict administrative access until all instances have been updated.

fixed in 1.2.31

check
no
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
yes, high privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
45m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-23 14:42Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual: an exploit technique exists, but no deterministic check could cover this one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-23 14:42Z
  2. 2026-10-23 14:42Z

this entry in the feed

GET /api/v1/feed/CVE-2026-39902

{
  "etk_id": "ETK-2026-2570",
  "cve_id": "CVE-2026-39902",
  "display_id": "CVE-2026-39902",
  "ghsa_id": "GHSA-c4qp-j9r9-fq24",
  "euvd_id": "EUVD-2026-109088",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authenticated command injection in Cacti data inputs",
  "summary": "Cacti releases before 1.2.31 insufficiently restrict shell-control characters in data-input string configuration. An authenticated administrator may use this flaw to cause commands to run through the affected input handling.",
  "mitigation": "Upgrade Cacti to version 1.2.31 or later. Restrict administrative access until all instances have been updated.",
  "vendor": "cacti",
  "product": "cacti/cacti",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.2.30"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.2.31"
      ],
      "package_name": "cacti/cacti",
      "purl": null
    }
  ],
  "cwes": [
    78
  ],
  "cvss_score": 7.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 44.799894716666664,
  "t0_at": "2026-10-23T14:42:45.710000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-23T14:42:45.710000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-23T14:42:45.710000+00:00",
      "url": "https://github.com/Cacti/cacti/security/advisories/GHSA-c4qp-j9r9-fq24"
    }
  }
}

published 2026-10-24 22:34Z
last change 2026-10-25 00:36Z

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