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              "value": "Issue summary: The \u0027openssl dgst\u0027 command-line tool silently truncates input\u003cbr\u003edata to 16MB when using one-shot signing algorithms and reports success instead\u003cbr\u003eof an error.\u003cbr\u003e\u003cbr\u003eImpact summary: A user signing or verifying files larger than 16MB with\u003cbr\u003eone-shot algorithms (such as Ed25519, Ed448, or ML-DSA) may believe the entire\u003cbr\u003efile is authenticated while trailing data beyond 16MB remains unauthenticated.\u003cbr\u003e\u003cbr\u003eWhen the \u0027openssl dgst\u0027 command is used with algorithms that only support\u003cbr\u003eone-shot signing (Ed25519, Ed448, ML-DSA-44, ML-DSA-65, ML-DSA-87), the input\u003cbr\u003eis buffered with a 16MB limit. If the input exceeds this limit, the tool\u003cbr\u003esilently truncates to the first 16MB and continues without signaling an error,\u003cbr\u003econtrary to what the documentation states. This creates an integrity gap where\u003cbr\u003etrailing bytes can be modified without detection if both signing and\u003cbr\u003everification are performed using the same affected codepath.\u003cbr\u003e\u003cbr\u003eThe issue affects only the command-line tool behavior. Verifiers that process\u003cbr\u003ethe full message using library APIs will reject the signature, so the risk\u003cbr\u003eprimarily affects workflows that both sign and verify with the affected\u003cbr\u003e\u0027openssl dgst\u0027 command. Streaming digest algorithms for \u0027openssl dgst\u0027 and\u003cbr\u003elibrary users are unaffected.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 3.5 and 3.6 are not affected by this issue, as the\u003cbr\u003ecommand-line tools are outside the OpenSSL FIPS module boundary.\u003cbr\u003e\u003cbr\u003eOpenSSL 3.5 and 3.6 are vulnerable to this issue.\u003cbr\u003e\u003cbr\u003eOpenSSL 3.4, 3.3, 3.0, 1.1.1 and 1.0.2 are not affected by this issue."
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          "value": "libcurl can in some circumstances reuse the wrong connection when asked to do\nan Negotiate-authenticated HTTP or HTTPS request.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criterion must first be met. Due to a\nlogical error in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials. One underlying reason being that\nNegotiate sometimes authenticates *connections* and not *requests*, contrary\nto how HTTP is designed to work.\n\nAn application that allows Negotiate authentication to a server (that responds\nwanting Negotiate) with `user1:password1` and then does another operation to\nthe same server also using Negotiate but with `user2:password2` (while the\nprevious connection is still alive) - the second request wrongly reused the\nsame connection and since it then sees that the Negotiate negotiation is\nalready made, it just sends the request over that connection thinking it uses\nthe user2 credentials when it is in fact still using the connection\nauthenticated for user1...\n\nThe set of authentication methods to use is set with  `CURLOPT_HTTPAUTH`.\n\nApplications can disable libcurl\u0027s reuse of connections and thus mitigate this\nproblem, by using one of the following libcurl options to alter how\nconnections are or are not reused: `CURLOPT_FRESH_CONNECT`,\n`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the\ncurl_multi API)."
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        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-1965.html"
        }
      ],
      "title": "bad reuse of HTTP Negotiate connection"
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              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "title": "CISA ADP Vulnrichment"
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              "value": "Issue summary: When a partial-chain certificate verification is enabled\u003cbr\u003etogether with OCSP response checking for the whole chain, a NULL dereference\u003cbr\u003ewill happen if the verified chain does not have a self-signed trusted anchor,\u003cbr\u003ecrashing the process.\u003cbr\u003e\u003cbr\u003eImpact summary: A NULL pointer dereference can trigger a crash which leads to a\u003cbr\u003eDenial of Service for an application.\u003cbr\u003e\u003cbr\u003eWhen performing OCSP response checking for certificates in the verification\u003cbr\u003echain, the code always tries to access the next certificate as the issuer.\u003cbr\u003eThere is a check for a self-signed certificate. However with the partial\u003cbr\u003echain verification enabled when the chain does not have a self-signed trusted\u003cbr\u003eanchor, the issuer will be NULL for the last certificate in the chain. A NULL\u003cbr\u003epointer dereference then happens.\u003cbr\u003e\u003cbr\u003eThis issue affects only applications which enable both OCSP verification\u003cbr\u003eof the certificate chain (X509_V_FLAG_OCSP_RESP_CHECK_ALL) and partial\u003cbr\u003echain verification (X509_V_FLAG_PARTIAL_CHAIN) in the certificate\u003cbr\u003everification. Both flags are disabled by default. For that reason, we have\u003cbr\u003eassigned Low severity to the issue.\u003cbr\u003e\u003cbr\u003eNo FIPS modules are affected by this issue as the affected code is outside\u003cbr\u003ethe OpenSSL FIPS module boundary."
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          "url": "https://openssl-library.org/news/secadv/20260609.txt"
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              "value": "Issue Summary: Cryptographic Message Services (CMS) processing fails to perform\u003cbr\u003esufficient input validation on the cipher and tag length fields of\u003cbr\u003eAuthEnvelopedData containers, leading to various potential compromises.\u003cbr\u003e\u003cbr\u003eImpact Summary: Attackers making use of these vulnerabilities may achieve\u003cbr\u003ekey-equivalent functionality for a given CMS recipient and/or bypass integrity\u003cbr\u003evalidation for a given message.\u003cbr\u003e\u003cbr\u003eIn one use case, an attacker may send a CMS message containing\u003cbr\u003eAuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL\u003cbr\u003eerroneously allows this selection, and attempts to decrypt and validate the\u003cbr\u003emessage.\u003cbr\u003e\u003cbr\u003eAn on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData\u003cbr\u003eaddressed to the victim can re-emit it with the recipientInfos set left\u003cbr\u003ebyte-for-byte intact, so the victim\u0027s private key still unwraps the genuine CEK\u003cbr\u003e(the content-encryption key), but with the inner OID rewritten to AES-256-OFB\u003cbr\u003e(Output Feedback Mode, an unauthenticated keystream mode) and with an\u003cbr\u003eattacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the\u003cbr\u003ereal CEK, never consults the MAC field, and CMS_decrypt() returns success.\u003cbr\u003e\u003cbr\u003eIf the application under attack responds to the attacker with any indicator\u003cbr\u003eshowing success or failure of the decryption effort, it is possible for the\u003cbr\u003eattacker to use this as an oracle to obtain key equivalent functionality for the\u003cbr\u003eCEK used for the chosen recipient of the message.\u003cbr\u003e\u003cbr\u003eIn another use case, an attacker can reduce the tag length of the chosen AEAD\u003cbr\u003ecipher for a given AuthEnvelopedData container to be a single byte long,\u003cbr\u003eallowing an attacker to brute force CMS decryption, producing an integrity\u003cbr\u003ebypass for applications that trust CMS_decrypt() to reject modified content.\u003cbr\u003e\u003cbr\u003eThe FIPS modules are not affected by this issue."
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              "lang": "en-US",
              "type": "CWE"
            },
            {
              "cweId": "CWE-20",
              "description": "CWE-20: Improper Input Validation",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-19T16:13:23.878Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": ".NET Elevation of Privilege Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32177"
        }
      ],
      "title": ".NET Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-32177",
    "datePublished": "2026-05-12T16:58:15.551Z",
    "dateReserved": "2026-03-11T00:26:53.425Z",
    "dateUpdated": "2026-06-30T12:07:45.461Z",
    "state": "PUBLISHED"
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}