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        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4976"
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      "title": "ReverseProxy forwards queries with more than urlmaxqueryparams parameters in net/http/httputil"
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          "value": "Mundur (https://github.com/M0nd0R)"
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          "lang": "en",
          "value": "If a trusted template author were to write a \u003cscript\u003e tag containing an empty \u0027type\u0027 attribute or a \u0027type\u0027 attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the \u003cscript\u003e block."
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          "url": "https://pkg.go.dev/vuln/GO-2026-4980"
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      ],
      "title": "Escaper bypass leads to XSS in html/template"
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              "name": "LookupIP"
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        "name": "go.opentelemetry.io/otel"
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  "aliases": [
    "CVE-2026-29181"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-07T20:12:57Z",
    "nvd_published_at": "2026-04-07T21:17:16Z",
    "severity": "HIGH"
  },
  "details": "multi-value `baggage:` header extraction parses each header field-value independently and aggregates members across values. this allows an attacker to amplify cpu and allocations by sending many `baggage:` header lines, even when each individual value is within the 8192-byte per-value parse limit.\n\n## severity\n\nHIGH (availability / remote request amplification)\n\n## relevant links\n\n- repository: https://github.com/open-telemetry/opentelemetry-go\n- pinned callsite: https://github.com/open-telemetry/opentelemetry-go/blob/1ee4a4126dbdd1bc79e9fae072fa488beffac52a/propagation/baggage.go#L58\n\n## vulnerability details\n\n**pins:** open-telemetry/opentelemetry-go@1ee4a4126dbdd1bc79e9fae072fa488beffac52a\n**as-of:** 2026-02-04\n**policy:** direct (no program scope provided)\n\n**callsite:** propagation/baggage.go:58 (`extractMultiBaggage`)\n**attacker control:** inbound HTTP request headers (many `baggage` field-values) \u2192 `propagation.HeaderCarrier.Values(\"baggage\")` \u2192 repeated `baggage.Parse` + member aggregation\n\n### root cause\n\n`extractMultiBaggage` iterates over all `baggage` header field-values and parses each one independently, then appends members into a shared slice. the 8192-byte parsing cap applies per header value, but the multi-value path repeats that work once per header line (bounded only by the server/proxy header byte limit).\n\n### impact\n\nin a default `net/http` configuration (max header bytes 1mb), a single request with many `baggage:` header field-values can cause large per-request allocations and increased latency.\n\nexample from the attached PoC harness (darwin/arm64; 80 values; 40 requests):\n\n- canonical: `per_req_alloc_bytes=10315458` and `p95_ms=7`\n- control: `per_req_alloc_bytes=133429` and `p95_ms=0`\n\n## proof of concept\n\ncanonical:\n\n```bash\nmkdir -p poc\nunzip poc.zip -d poc\ncd poc\nmake test\n```\n\noutput (excerpt):\n\n```\n[CALLSITE_HIT]: propagation/baggage.go:58 extractMultiBaggage\n[PROOF_MARKER]: baggage_multi_value_amplification p95_ms=7 per_req_alloc_bytes=10315458 per_req_allocs=16165\n```\n\ncontrol:\n\n```bash\ncd poc\nmake control\n```\n\ncontrol output (excerpt):\n\n```\n[NC_MARKER]: baggage_single_value_baseline p95_ms=0 per_req_alloc_bytes=133429 per_req_allocs=480\n```\n\n**expected:** multiple `baggage` header field-values should be semantically equivalent to a single comma-joined `baggage` value and should not multiply parsing/alloc work within the effective header byte budget.\n**actual:** multiple `baggage` header field-values trigger repeated parsing and member aggregation, causing high per-request allocations and increased latency even when each individual value is within 8192 bytes.\n\n## fix recommendation\n\navoid repeated parsing across multi-values by enforcing a global budget and/or normalizing multi-values into a single value before parsing. one mitigation approach is to treat multi-values as a single comma-joined string and cap total parsed bytes (for example 8192 bytes total).\n\n**fix accepted when:** under the default PoC harness settings, canonical stays within 2x of control for `per_req_alloc_bytes` and `per_req_allocs`, and `p95_ms` stays below 2ms.\n\n\n[poc.zip](https://github.com/user-attachments/files/25079945/poc.zip)\n[PR_DESCRIPTION.md](https://github.com/user-attachments/files/25079946/PR_DESCRIPTION.md)",
  "id": "GHSA-mh2q-q3fh-2475",
  "modified": "2026-04-24T20:04:24Z",
  "published": "2026-04-07T20:12:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29181"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-go/pull/7880"
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    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-go/commit/aa1894e09e3fe66860c7885cb40f98901b35277f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/open-telemetry/opentelemetry-go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.41.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenTelemetry-Go: multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)"
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/Azure/go-ntlmssp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32952"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-23T21:21:58Z",
    "nvd_published_at": "2026-04-24T03:16:07Z",
    "severity": "MODERATE"
  },
  "details": "go-ntlmssp is a Go package that provides NTLM/Negotiate authentication over HTTP. Prior to version 0.1.1, a malicious NTLM challenge message can causes an slice out of bounds panic, which can crash any Go process using `ntlmssp.Negotiator` as an HTTP transport. Version 0.1.1 patches the issue.",
  "id": "GHSA-pjcq-xvwq-hhpj",
  "modified": "2026-04-27T16:35:38Z",
  "published": "2026-04-23T21:21:58Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Azure/go-ntlmssp/security/advisories/GHSA-pjcq-xvwq-hhpj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32952"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Azure/go-ntlmssp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Azure/go-ntlmssp/releases/tag/v0.1.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "go-ntlmssp NTLM challenges can panic on malformed payloads"
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/bedrockagentcore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.15.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/bedrockagentruntime"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/bedrockruntime"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.50.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/cloudwatchlogs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.65.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/iotsitewise"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.52.19"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/kinesis"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.43.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/lambda"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.88.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/lexruntimev2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.35.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/s3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.97.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/sagemakerruntime"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.39.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/aws/aws-sdk-go-v2/service/transcribestreaming"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.34.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-08T00:18:56Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "**CVSSv3.1 Rating**: [Medium]\n**CVSSv3.1 Score**: [5.9]\n**CVSSv3.1 Vector String**: [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H]\n\n## Summary and Impact\nAn issue exists in the the EventStream header decoder in AWS SDK for Go v2 in versions predating [2026-03-23](https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23). An actor can send a malformed EventStream response frame containing a crafted header value type byte outside the valid range, which can cause the host process to terminate.\n\nImpacted versions: \u003c [2026-03-23](https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23)\n\n## Patches\nThis issue has been addressed in versions [2026-03-23](https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23) and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. \n\n## Workarounds\nNot Applicable\n\n## References\nIf you have any questions or comments about this advisory, we ask that you contact [AWS/Amazon] Security via our [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.",
  "id": "GHSA-xmrv-pmrh-hhx2",
  "modified": "2026-04-08T00:18:57Z",
  "published": "2026-04-08T00:18:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aws/aws-sdk-go-v2/security/advisories/GHSA-xmrv-pmrh-hhx2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aws/aws-sdk-go-v2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of Service due to Panic in AWS SDK for Go v2 SDK EventStream Decoder"
}