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CVE-2026-11749

CVE-2026-11749

validatedZero produced an exploit or a check.

GHSA-v86g-h7gx-q845 ↗EUVD-2026-116708 ↗

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.
maven:com.linecorp.armeria:armeria-saml < 1.41.1
fixed in 1.41.1
CWE-294 Authentication Bypass by Capture-replay
ETK-2026-3767Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:maven/com.linecorp.armeria/armeria-saml
cvss7.6cna vendorCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
+2.7dTTV
40mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0dcheck available+2.7dagent stopped
0
+1d
+2d
+3d

description

Armeria's armeria-saml module before 1.41.1 does not enforce single use of bearer assertions. An attacker who obtains a valid signed SAML response can replay it during its validity period to create additional authenticated sessions; they must be able to access that response.

mitigation

Upgrade com.linecorp.armeria:armeria-saml to version 1.41.1 or later. Reduce exposure by preventing SAML responses from being exposed through logs, browser-accessible storage, or unauthorized capture points.

fixed in 1.41.1

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.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.27%19th percentile
agent run time
40m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-04 05:18Z
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 check: a technique exists and was validated, 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. 2026-11-04 05:18Z
  2. 2026-11-04 05:18Z

this entry in the feed

GET /api/v1/feed/CVE-2026-11749

{
  "etk_id": "ETK-2026-3767",
  "cve_id": "CVE-2026-11749",
  "display_id": "CVE-2026-11749",
  "ghsa_id": "GHSA-v86g-h7gx-q845",
  "euvd_id": "EUVD-2026-116708",
  "status": "published",
  "anchor_state": "anchored",
  "title": "SAML bearer assertion replay in armeria-saml",
  "summary": "Armeria's armeria-saml module before 1.41.1 does not enforce single use of bearer assertions. An attacker who obtains a valid signed SAML response can replay it during its validity period to create additional authenticated sessions; they must be able to access that response.",
  "mitigation": "Upgrade com.linecorp.armeria:armeria-saml to version 1.41.1 or later. Reduce exposure by preventing SAML responses from being exposed through logs, browser-accessible storage, or unauthorized capture points.",
  "vendor": "maven",
  "product": "maven:com.linecorp.armeria:armeria-saml",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.41.1"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "1.41.1"
      ],
      "package_name": "com.linecorp.armeria:armeria-saml",
      "purl": "pkg:maven/com.linecorp.armeria/armeria-saml"
    }
  ],
  "cwes": [
    294
  ],
  "cvss_score": 7.6,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
  "epss_score": 0.0027,
  "epss_percentile": 0.1944,
  "epss_asof": "2026-11-06",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 40.34299326666667,
  "t0_at": "2026-11-04T05:18:07.137000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-06T22:29:48.056086+00:00",
      "days": 2.7164458227546295,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T05:18:07.137000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-04T05:18:07.137000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T05:18:07.137000+00:00",
      "url": "https://github.com/line/armeria/security/advisories/GHSA-v86g-h7gx-q845"
    }
  }
}

published 2026-11-06 21:49Z
last change 2026-11-07 23:34Z

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