CVE-2026-107283 (GCVE-0-2026-107283)

Vulnerability from cvelistv5 – Published: 2026-10-07 21:24 – Updated: 2026-10-07 21:24
VLAI
Title
AsyncHttpClient: Digest authentication cnonce generated with a non-cryptographic random source
Summary
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12 and 2.16.1, Realm.Builder generates the HTTP Digest client nonce with ThreadLocalRandom rather than a cryptographically secure random source. Digest relies on an unpredictable cnonce to resist chosen-plaintext and credential precomputation attacks, so an observer able to infer generator state can reduce the protection of the authentication exchange. This issue is fixed in versions 3.0.12 and 2.16.1.
CWE
  • CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Impacted products
Vendor Product Version CPE status
AsyncHttpClient async-http-client Affected: >= 3.0.0, < 3.0.12
Affected: >= 2.0.0, < 2.16.1
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "async-http-client",
          "vendor": "AsyncHttpClient",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.0.12"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.16.1"
            }
          ]
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      "descriptions": [
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          "value": "The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12  and 2.16.1, Realm.Builder generates the HTTP Digest client nonce with ThreadLocalRandom rather than a cryptographically secure random source. Digest relies on an unpredictable cnonce to resist chosen-plaintext and credential precomputation attacks, so an observer able to infer generator state can reduce the protection of the authentication exchange. This issue is fixed in versions 3.0.12 and 2.16.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-338",
              "description": "CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
              "lang": "en",
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            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-07T21:24:56.640Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
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          "name": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-mfj3-87qq-382v",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-mfj3-87qq-382v"
        },
        {
          "name": "https://github.com/AsyncHttpClient/async-http-client/commit/dca2d90db87f0144ea893a6858dca13c426d06b6",
          "tags": [
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          "url": "https://github.com/AsyncHttpClient/async-http-client/commit/dca2d90db87f0144ea893a6858dca13c426d06b6"
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          "tags": [
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          "url": "https://github.com/AsyncHttpClient/async-http-client/commit/e1f5fc88fe211d3f64032c33b91093ba3d5e793d"
        },
        {
          "name": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1",
          "tags": [
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          "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1"
        },
        {
          "name": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12",
          "tags": [
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          ],
          "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12"
        }
      ],
      "source": {
        "advisory": "GHSA-mfj3-87qq-382v",
        "discovery": "UNKNOWN"
      },
      "title": "AsyncHttpClient: Digest authentication cnonce generated with a non-cryptographic random source"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107283",
    "datePublished": "2026-10-07T21:24:56.640Z",
    "dateReserved": "2026-10-07T15:53:23.586Z",
    "dateUpdated": "2026-10-07T21:24:56.640Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "async-http-client",
                "vendor": "AsyncHttpClient",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 3.0.0, \u003c 3.0.12"
                  },
                  {
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                    "version": "\u003e= 2.0.0, \u003c 2.16.1"
                  }
                ]
              }
            ],
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          }
        ],
        "cveTags": [],
        "descriptions": [
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            "lang": "en",
            "value": "The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12  and 2.16.1, Realm.Builder generates the HTTP Digest client nonce with ThreadLocalRandom rather than a cryptographically secure random source. Digest relies on an unpredictable cnonce to resist chosen-plaintext and credential precomputation attacks, so an observer able to infer generator state can reduce the protection of the authentication exchange. This issue is fixed in versions 3.0.12 and 2.16.1."
          }
        ],
        "id": "CVE-2026-107283",
        "lastModified": "2026-10-07T22:17:04.327",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 3.7,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 1.4,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-07T22:17:04.327",
        "references": [
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            "source": "security-advisories@github.com",
            "url": "https://github.com/AsyncHttpClient/async-http-client/commit/dca2d90db87f0144ea893a6858dca13c426d06b6"
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            "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12"
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            "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-mfj3-87qq-382v"
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        "vulnStatus": "Received",
        "weaknesses": [
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            "description": [
              {
                "lang": "en",
                "value": "CWE-338"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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