{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.17.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/go-git/go-git/v5"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.17.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34165"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-30T17:17:54Z",
    "nvd_published_at": "2026-03-31T15:16:17Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nA vulnerability has been identified in which a maliciously crafted `.idx` file can cause asymmetric memory consumption, potentially exhausting available memory and resulting in a Denial of Service (DoS) condition.\n\nExploitation requires write access to the local repository\u0027s `.git` directory, it order to create or alter existing `.idx` files. \n\n### Patches\n\nUsers should upgrade to `v5.17.1`, or the latest `v6` [pseudo-version](https://go.dev/ref/mod#pseudo-versions), in order to mitigate this vulnerability.\n\n### Credit\n\nThe go-git maintainers thank @kq5y for finding and reporting this issue privately to the `go-git` project.",
  "id": "GHSA-jhf3-xxhw-2wpp",
  "modified": "2026-03-31T18:50:40Z",
  "published": "2026-03-30T17:17:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/go-git/go-git/security/advisories/GHSA-jhf3-xxhw-2wpp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34165"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/go-git/go-git"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-git/go-git/releases/tag/v5.17.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "go-git: Maliciously crafted idx file can cause asymmetric memory consumption"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.40.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "go.opentelemetry.io/otel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.36.0"
            },
            {
              "fixed": "1.41.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "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"
    },
    {
      "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": "google.golang.org/grpc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.79.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33186"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-285"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-18T20:10:29Z",
    "nvd_published_at": "2026-03-20T23:16:45Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nIt is an **Authorization Bypass** resulting from **Improper Input Validation** of the HTTP/2 `:path` pseudo-header.\n\nThe gRPC-Go server was too lenient in its routing logic, accepting requests where the `:path` omitted the mandatory leading slash (e.g., `Service/Method` instead of `/Service/Method`). While the server successfully routed these requests to the correct handler, authorization interceptors (including the official `grpc/authz` package) evaluated the raw, non-canonical path string. Consequently, \"deny\" rules defined using canonical paths (starting with `/`) failed to match the incoming request, allowing it to bypass the policy if a fallback \"allow\" rule was present.\n\n**Who is impacted?**\nThis affects gRPC-Go servers that meet both of the following criteria:\n1. They use path-based authorization interceptors, such as the official RBAC implementation in `google.golang.org/grpc/authz` or custom interceptors relying on `info.FullMethod` or `grpc.Method(ctx)`.\n2. Their security policy contains specific \"deny\" rules for canonical paths but allows other requests by default (a fallback \"allow\" rule).\n\nThe vulnerability is exploitable by an attacker who can send raw HTTP/2 frames with malformed `:path` headers directly to the gRPC server.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nYes, the issue has been patched. The fix ensures that any request with a `:path` that does not start with a leading slash is immediately rejected with a `codes.Unimplemented` error, preventing it from reaching authorization interceptors or handlers with a non-canonical path string.\n\nUsers should upgrade to the following versions (or newer):\n* **v1.79.3**\n* The latest **master** branch.\n\nIt is recommended that all users employing path-based authorization (especially `grpc/authz`) upgrade as soon as the patch is available in a tagged release.\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nWhile upgrading is the most secure and recommended path, users can mitigate the vulnerability using one of the following methods:\n\n#### 1. Use a Validating Interceptor (Recommended Mitigation)\nAdd an \"outermost\" interceptor to your server that validates the path before any other authorization logic runs:\n\n```go\nfunc pathValidationInterceptor(ctx context.Context, req any, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {\n    if info.FullMethod == \"\" || info.FullMethod[0] != \u0027/\u0027 {\n        return nil, status.Errorf(codes.Unimplemented, \"malformed method name\")\n    }   \n    return handler(ctx, req)\n}\n\n// Ensure this is the FIRST interceptor in your chain\ns := grpc.NewServer(\n    grpc.ChainUnaryInterceptor(pathValidationInterceptor, authzInterceptor),\n)\n```\n\n#### 2. Infrastructure-Level Normalization\nIf your gRPC server is behind a reverse proxy or load balancer (such as Envoy, NGINX, or an L7 Cloud Load Balancer), ensure it is configured to enforce strict HTTP/2 compliance for pseudo-headers and reject or normalize requests where the `:path` header does not start with a leading slash.\n\n#### 3. Policy Hardening\nSwitch to a \"default deny\" posture in your authorization policies (explicitly listing all allowed paths and denying everything else) to reduce the risk of bypasses via malformed inputs.",
  "id": "GHSA-p77j-4mvh-x3m3",
  "modified": "2026-03-25T18:12:09Z",
  "published": "2026-03-18T20:10:29Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33186"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/grpc/grpc-go"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "gRPC-Go has an authorization bypass via missing leading slash in :path"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.5.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/moby/spdystream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35469"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-16T20:44:01Z",
    "nvd_published_at": "2026-04-16T22:16:37Z",
    "severity": "HIGH"
  },
  "details": "The SPDY/3 frame parser in spdystream does not validate\nattacker-controlled counts and lengths before allocating memory. A\nremote peer that can send SPDY frames to a service using spdystream can\ncause the process to allocate gigabytes of memory with a small number of\nmalformed control frames, leading to an out-of-memory crash.\n\u00a0\nThree allocation paths in the receive side are affected:\n1. **SETTINGS entry count** -- The SETTINGS frame reader reads a 32-bit\n`numSettings` from the payload and allocates a slice of that size\nwithout checking it against the declared frame length. An attacker\ncan set `numSettings` to a value far exceeding the actual payload,\ntriggering a large allocation before any setting data is read.\n\u00a0\n2. **Header count** -- `parseHeaderValueBlock` reads a 32-bit\n`numHeaders` from the decompressed header block and allocates an\n`http.Header` map of that size with no upper bound.\n\u00a0\n3. **Header field size** -- Individual header name and value lengths are\nread as 32-bit integers and used directly as allocation sizes with\nno validation.\n\u00a0\nBecause SPDY header blocks are zlib-compressed, a small on-the-wire\npayload can decompress into attacker-controlled bytes that the parser\ninterprets as 32-bit counts and lengths. A single crafted frame is\nenough to exhaust process memory.\n## Impact\n\u00a0Any program that accepts SPDY connections using spdystream -- directly\nor through a dependent library -- is affected. A remote peer that can\nsend SPDY frames to the service can crash the process with a single\ncrafted SPDY control frame, causing denial of service.\n## Affected versions\n\u00a0`github.com/moby/spdystream` \u003c= v0.5.0\n## Fix\n\u00a0v0.5.1 addresses the receive-side allocation bugs and adds related\nhardening:\n\u00a0\n**Core fixes:**\n\u00a0\n- **SETTINGS entry-count validation** -- The SETTINGS frame reader now\nchecks that `numSettings` is consistent with the declared frame\nlength (`numSettings \u003c= (length-4)/8`) before allocating.\n\u00a0\n- **Header count limit** -- `parseHeaderValueBlock` enforces a maximum\nnumber of headers per frame (default: 1000).\n\u00a0\n- **Header field size limit** -- Individual header name and value\nlengths are checked against a per-field size limit (default: 1 MiB)\nbefore allocation.\n\u00a0\n- **Connection closure on protocol error** -- The connection read loop\nnow closes the underlying `net.Conn` when it encounters an\n`InvalidControlFrame` error, preventing further exploitation on the\nsame connection.\n\u00a0\n**Additional hardening:**\n\u00a0\n- **Write-side bounds checks** -- All frame write methods now verify\nthat payloads fit within the 24-bit length field, preventing the\nlibrary from producing invalid frames.\n\u00a0\n**Configurable limits:**\n\u00a0\n- Callers can adjust the defaults using `NewConnectionWithOptions` or\nthe lower-level `spdy.NewFramerWithOptions` with functional options:\n`WithMaxControlFramePayloadSize`, `WithMaxHeaderFieldSize`, and\n`WithMaxHeaderCount`.\n\u00a0",
  "id": "GHSA-pc3f-x583-g7j2",
  "modified": "2026-06-08T23:36:28Z",
  "published": "2026-04-16T20:44:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/moby/spdystream/security/advisories/GHSA-pc3f-x583-g7j2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35469"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moby/spdystream/commit/ef6121f62c730110bf5ae604a865a8613bfb787f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/moby/spdystream"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moby/spdystream/releases/tag/v0.5.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "SpdyStream: DOS on CRI"
}