CVE-2026-119618

validatedZero produced an exploit or a check.

GHSA-hjhf-gpg9-qqfj ↗EUVD-2026-123532 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
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.
Apache Software Foundation Apache HTTP Server >= 2.4.55, <= 2.4.70
ETK-2026-4183Zero's internal tracking ID, independent of the CVE number., permanent identifier
+1h56mTTV
52mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck available+1h56magent stopped
0
+1h

description

Apache HTTP Server 2.4.55 through 2.4.70 is affected by a synchronization flaw in mod_http2; separately distributed mod_h2 versions 2.0.8 through 2.0.42 are also affected. An attacker may be able to achieve remote code execution where the affected HTTP/2 module is in use.

mitigation

Upgrade Apache HTTP Server to version 2.4.71 or later. Until upgrading, disable mod_http2 where HTTP/2 support is not required to reduce exposure.

check
available
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.
deterministic
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
52m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-11 14:54Z
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

Check only, differential: the check fires on the vulnerable build and is silent on the patched one.

source signals

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

  1. 2026-11-11 14:54Z
    ghsa: trigger signal, started the run
  2. 2026-11-11 14:54Z

this entry in the feed

GET /api/v1/feed/CVE-2026-119618

{
  "etk_id": "ETK-2026-4183",
  "cve_id": "CVE-2026-119618",
  "display_id": "CVE-2026-119618",
  "ghsa_id": "GHSA-hjhf-gpg9-qqfj",
  "euvd_id": "EUVD-2026-123532",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Race condition in Apache HTTP Server mod_http2",
  "summary": "Apache HTTP Server 2.4.55 through 2.4.70 is affected by a synchronization flaw in mod_http2; separately distributed mod_h2 versions 2.0.8 through 2.0.42 are also affected. An attacker may be able to achieve remote code execution where the affected HTTP/2 module is in use.",
  "mitigation": "Upgrade Apache HTTP Server to version 2.4.71 or later. Until upgrading, disable mod_http2 where HTTP/2 support is not required to reduce exposure.",
  "vendor": "Apache Software Foundation",
  "product": "Apache HTTP Server",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.4.55, <= 2.4.70"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Apache HTTP Server",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 52.0967781,
  "t0_at": "2026-11-11T14:54:08.155000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-11T16:49:55.127816+00:00",
      "days": 0.08040477796296296,
      "is_lower_bound": false,
      "measured_at": "2026-11-11T14:54:08.155000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-11T14:54:08.155000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-11T14:54:08.155000+00:00",
      "url": "https://github.com/advisories/GHSA-hjhf-gpg9-qqfj"
    }
  }
}

published 2026-11-11 15:57Z
last change 2026-11-11 16:50Z

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