Vulnerability-Lookup

GHSA-53CW-GGRV-83HG

Vulnerability from github – Published: 2026-08-28 03:31 – Updated: 2026-08-28 03:31

Details

Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-38819"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
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    "nvd_published_at": "2026-08-28T02:16:21Z",
    "severity": "MODERATE"
  },
  "details": "Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.",
  "id": "GHSA-53cw-ggrv-83hg",
  "modified": "2026-08-28T03:31:23Z",
  "published": "2026-08-28T03:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-38819"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openNDS/openNDS/commit/b2801d9f14af44a23be7e9a1c378623bc5947c4c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openNDS/openNDS/commit/f2332e68c6d34f8403db346e380fff3817020d5c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-38819 (GCVE-0-2026-38819)

Vulnerability from cvelistv5 – Published: 2026-08-28 00:03 – Updated: 2026-08-28 16:21

Summary

Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-28 16:21 UTC

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2350 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/openNDS/openNDS/commit/f2332e6…
https://github.com/openNDS/openNDS/commit/b2801d9…

Impacted products

1 product

Vendor	Product	Version
openNDS	openNDS	Affected: 0 , < 11.0.0 (semver) cpe:2.3:a:opennds:opennds::::::::

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                "timestamp": "2026-08-28T16:21:09.508333Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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