Vulnerability-Lookup

FKIE_CVE-2026-103880

Vulnerability from fkie_nvd - Published: 2026-10-02 10:17 - Updated: 2026-10-02 22:16

Severity

Summary

Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread.html/39q63m54v9go6xj7pqj7q18c3szn9go4
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/10/02/7

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
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    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.directory.api:api-ldap-model",
          "packageURL": "pkg:maven/org.apache.directory.api/api-ldap-model",
          "product": "Apache Directory LDAP API",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "2.1.9",
              "status": "affected",
              "version": "2.1.0",
              "versionType": "semver"
            }
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      "lang": "en",
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    }
  ],
  "id": "CVE-2026-103880",
  "lastModified": "2026-10-02T22:16:53.777",
  "metrics": {},
  "published": "2026-10-02T10:17:06.700",
  "references": [
    {
      "source": "security@apache.org",
      "url": "https://lists.apache.org/thread.html/39q63m54v9go6xj7pqj7q18c3szn9go4"
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    {
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      "url": "http://www.openwall.com/lists/oss-security/2026/10/02/7"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-405"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}

CVE-2026-103880 (GCVE-0-2026-103880)

Vulnerability from cvelistv5 – Published: 2026-10-02 10:03 – Updated: 2026-10-02 21:07

Title

Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords

Summary

Severity

No CVSS data available.

CWE

CWE-405 - Asymmetric Resource Consumption (Amplification)

Assigner

apache mitre root Scorecard

References

2 references

URL	Tags
https://lists.apache.org/thread.html/39q63m54v9go…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/10/02/7

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Directory LDAP API	Affected: 2.1.0 , < 2.1.9 (semver)

Credits

Claude Security The Apache Software Foundation

Show details on NVD website

JSON

To clipboard

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          "collectionURL": "https://repo.maven.apache.org/maven2",
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          "packageURL": "pkg:maven/org.apache.directory.api/api-ldap-model",
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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.

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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FKIE_CVE-2026-103880

CVE-2026-103880 (GCVE-0-2026-103880)

Tags

Sightings

Nomenclature

Related by attack behaviour