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ETK-2026-3181Zero's internal tracking ID, independent of the CVE number.

ETK-2026-3181Zero's internal tracking ID, independent of the CVE number.

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

GHSA-3cp4-779m-h837 ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
other:OpenEXR 3.1.0-3.1.13; 3.2.0-3.2.12; 3.3.0-3.3.14; 3.4.0-3.4.16; 3.5.0-3.5.2
fixed in 3.3.15, 3.4.17, 3.5.3
CWE-416 Use After Free
ETK-2026-3181Zero's internal tracking ID, independent of the CVE number., no cve assigned
cvss7.0ethiack provisional
7h 15msince last run
20mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org, not yet published
trigger signal −7h40mwaiting for further signals−7h15m
−6h
−4h
−2h
0

description

OpenEXRCore's C API can retain a stale channel-attribute reference after copying an EXR header. An attacker-controlled EXR may cause memory-unsafe behavior or a crash when an application copies untrusted header attributes into an output file and then writes or changes that header. The documented trigger does not apply when the output context has long channel-name support enabled before the copy.

mitigation

Upgrade OpenEXR to 3.3.15, 3.4.17, 3.5.3 or later.

fixed in 3.3.15, 3.4.17, 3.5.3

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.
–
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
20m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
not published yet
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, not validated: no deterministic check could cover this one, and no technique passed our review.

source signals

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

  1. 2026-10-31 14:37Z

this entry in the feed

GET /api/v1/feed/ETK-2026-3181

{
  "etk_id": "ETK-2026-3181",
  "cve_id": null,
  "display_id": "ETK-2026-3181",
  "ghsa_id": "GHSA-3cp4-779m-h837",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Use-after-free in OpenEXRCore header copying",
  "summary": "OpenEXRCore's C API can retain a stale channel-attribute reference after copying an EXR header. An attacker-controlled EXR may cause memory-unsafe behavior or a crash when an application copies untrusted header attributes into an output file and then writes or changes that header. The documented trigger does not apply when the output context has long channel-name support enabled before the copy.",
  "mitigation": "Upgrade OpenEXR to 3.3.15, 3.4.17, 3.5.3 or later.",
  "vendor": "other",
  "product": "other:OpenEXR",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "3.1.0-3.1.13",
        "3.2.0-3.2.12",
        "3.3.0-3.3.14",
        "3.4.0-3.4.16",
        "3.5.0-3.5.2"
      ],
      "ecosystem": "other",
      "fixed_versions": [
        "3.3.15",
        "3.4.17",
        "3.5.3"
      ],
      "package_name": "OpenEXR",
      "purl": null
    }
  ],
  "cwes": [
    416
  ],
  "cvss_score": 7,
  "cvss_src": "ethiack_provisional",
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 20.3952697,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-10-31T14:37:12+00:00",
      "days": -0.3194575875,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T22:17:13.168057+00:00",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3cp4-779m-h837"
    }
  }
}

published 2026-10-31 15:34Z
last change 2026-10-31 21:57Z

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