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CVE-2026-68956

CVE-2026-68956

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

GHSA-qhcm-px9c-rvfh ↗EUVD-2026-84339 ↗

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.
OTP >= 18.1.2; >= 4.1.1
fixed in 29.1.1, 28.5.0.7, 27.3.4.18, 6.0.6, 5.5.2.6, 5.2.11.13
CWE-770 Allocation of Resources Without Limits or Throttling
ETK-2026-2220Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss7.1cna vendorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7h 01msince last run
33mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hwaiting for further signals+684h23m
0
+2h
+4h
+6h
+8h
+10h

description

Affected Erlang/OTP SSH daemons can allow an authenticated client to create enough inactive session channels to exhaust Erlang VM memory and interrupt services on the node. An attacker needs valid SSH credentials and network access to the daemon; elevated privileges are not required.

mitigation

Upgrade OTP to 29.1.1, 28.5.0.7, 27.3.4.18; ssh to 6.0.6, 5.5.2.6, 5.2.11.13 or later.

fixed in 29.1.1, 28.5.0.7, 27.3.4.18, 6.0.6, 5.5.2.6, 5.2.11.13

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, low privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
33m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-22 08:49Z
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. 2026-09-22 08:49Z
  2. 2026-09-22 08:49Z

this entry in the feed

GET /api/v1/feed/CVE-2026-68956

{
  "etk_id": "ETK-2026-2220",
  "cve_id": "CVE-2026-68956",
  "display_id": "CVE-2026-68956",
  "ghsa_id": "GHSA-qhcm-px9c-rvfh",
  "euvd_id": "EUVD-2026-84339",
  "status": "published",
  "anchor_state": "anchored",
  "title": "SSH channel resource exhaustion in Erlang/OTP",
  "summary": "Affected Erlang/OTP SSH daemons can allow an authenticated client to create enough inactive session channels to exhaust Erlang VM memory and interrupt services on the node. An attacker needs valid SSH credentials and network access to the daemon; elevated privileges are not required.",
  "mitigation": "Upgrade OTP to 29.1.1, 28.5.0.7, 27.3.4.18; ssh to 6.0.6, 5.5.2.6, 5.2.11.13 or later.",
  "vendor": "otp",
  "product": "OTP",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 18.1.2"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "29.1.1",
        "28.5.0.7",
        "27.3.4.18"
      ],
      "package_name": "OTP",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 4.1.1"
      ],
      "ecosystem": "otp",
      "fixed_versions": [
        "6.0.6",
        "5.5.2.6",
        "5.2.11.13"
      ],
      "package_name": "ssh",
      "purl": null
    }
  ],
  "cwes": [
    770
  ],
  "cvss_score": 7.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 33.04981715,
  "t0_at": "2026-09-22T08:49:21.760000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-22T08:49:21.760000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-22T08:49:21.760000+00:00",
      "url": "https://github.com/erlang/otp/security/advisories/GHSA-qhcm-px9c-rvfh"
    }
  }
}

published 2026-10-20 20:39Z
last change 2026-10-21 03:11Z

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