{
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  "Kind": "DirectoryIssues",
  "Slug": "oraclemcp",
  "Name": "oraclemcp",
  "CanonicalUrl": "https://askpod.ai/mcp/oraclemcp/issues",
  "ServerUrl": "https://askpod.ai/mcp/oraclemcp",
  "IssueTotal": 25,
  "Held": 16,
  "Issues": [
    {
      "Title": "oracle_query on policy-heavy schema always times out: per-call RLS/VPD probe (ALL_POLICIES) blows the 30s budget",
      "Excerpt": "## Summary\n\nOn a policy-heavy schema, **every `oracle_query` is cancelled at the 30s request budget** (`{\"error_class\":\"TIMEOUT\",\"message\":\"request cancelled: Cancelled\"}`) even for a trivial `SELECT 1 FROM dual`. Root cause is the per-call **RLS/VPD visibility probe** (`ALL_POLICIES`) that `oracle_query` attaches to every result: on a schema with many active VPD policies that probe alone exceeds the 30s budget and takes the whole read down with it. The database is healthy and plain SELECTs…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/59",
      "PublishedAt": "2026-09-28T08:33:25.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "Connection-failure diagnosability: 'driver detail suppressed', connect trace stops at read ACCEPT, misleading first hint",
      "Excerpt": "> Field-test report (error-clarity / diagnosability). Observed on OCI connect attempts during the 0.11.0 adoption; the gap is general to connection failures. Sanitized.\n\n### Summary\nWhen a connection fails (seen on OCI Autonomous DB profiles), the failure is hard to diagnose:\n1. The client gets `Oracle connection failed; driver detail suppressed` — the underlying Oracle/driver error is hidden, and there's no documented switch to reveal it.\n2. The suggested `ORACLEDB_TRACE_CONNECT=1` trace stops…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/56",
      "PublishedAt": "2026-09-23T13:57:29.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "OCI ADB wallet: default musl build rejects stock wallet (cwallet.sso unsupported / ewallet.pem legacy 3DES-PKCS12)",
      "Excerpt": "> Field-test report. First observed at v0.7.2 (default musl build); please confirm current status on 0.11.0 (see note). Sanitized.\n\n### Summary\nThe default **musl** build could not consume a **stock, unmodified OCI Autonomous Database wallet**:\n- `cwallet.sso` (the SSO auto-login wallet) was unsupported by the driver's wallet loader.\n- `ewallet.pem` / `.p12` private key uses a **legacy 3DES PKCS#12** scheme (PBE OID `1.2.840.113549.1.12.1.3`), which the Rust PKCS12 parser rejected — it accepted…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/55",
      "PublishedAt": "2026-09-23T13:57:26.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "OCI Autonomous DB: post-ACCEPT auth/TTC handshake fails in oraclemcp-driver-cx (on-prem 19c + python-oracledb thin both work)",
      "Excerpt": "> Field-test report (not a fresh code-traced repro). Observed across install-test rounds up to the 0.11.0 adoption. Sanitized of host/schema/profile names.\n\n### Summary\nAgainst an **OCI Autonomous Database** (mTLS wallet, TCPS EZConnect descriptor), the thin driver `oraclemcp-driver-cx 0.9.2` completes TLS + wallet load (`cwallet.sso`) + TNS **ACCEPT**, but then **fails the post-ACCEPT auth / TTC handshake**. On-prem Oracle 19c connects fine with the same driver, so this is specific to…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/54",
      "PublishedAt": "2026-09-23T13:57:22.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "Read-only guard bypass: oracle_sample_rows skips the VPD/purity proof and result-masking",
      "Excerpt": "> Read-only guard **bypass**. Reported publicly at the maintainer's direction; see SECURITY.md for the normal private-disclosure path. Confirmed from source at commit 73973b2 (v0.11.0). No database data included.\n\n### Summary\n`oracle_sample_rows` reads **VPD/policy-protected tables and views** that `oracle_query` refuses, and returns rows **without applying the profile's result-masking policy**. On a read-only, masking-enforced profile this exposes protected rows and unmasked column values.…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/53",
      "PublishedAt": "2026-09-23T12:19:03.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "Read-only guard bypass: view/VPD/policy objects reachable via a subquery (EXISTS/IN)",
      "Excerpt": "> Read-only guard **bypass**. Reported publicly at the maintainer's direction; see SECURITY.md for the normal private-disclosure path. Confirmed from source at commit 73973b2 (v0.11.0). No database data included.\n\n### Summary\nOn a read-only profile, a `SELECT` can reach a **view**, a **VPD/policy-protected table**, or an object with a **virtual-column / policy-function dependency** — all of which `oracle_query` refuses at top level — simply by referencing it inside a subquery (`EXISTS`, `IN`,…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/52",
      "PublishedAt": "2026-09-23T12:18:59.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "Second serve instance refuses pre-handshake on audit-log lock; client sees only 'Connection closed'",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2).\n\n### What happens\nEach MCP client session launches its own `oraclemcp serve`. Starting a **second** instance for the same user/host fails: the child exits before the MCP handshake with\n\n```\nrefusing to start: audit log .../audit/audit.jsonl is locked by another oraclemcp instance (pid N); refusing to fork the hash-chain\n```\n\non **stderr**, exit code 2. The MCP client sees only the process die with nothing on stdout → `CONNECTION_CLOSED` / \"Connection…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/51",
      "PublishedAt": "2026-09-23T12:17:24.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "'call timeout of 0 ms exceeded' from head-of-line blocking on the pinned-session mutex",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2). Driver: `oraclemcp-driver-cx =0.9.2`.\n\n### What happens\nWhile one `oracle_query` is running long, a second `oracle_query` fails **immediately** with `call timeout of 0 ms exceeded`. The \"0 ms\" is misleading — it is not a zero timeout, it's an already-expired deadline.\n\n### Root cause (confirmed in code)\nThe second request blocks on `self.state.lock(cx)` behind the long query (`dispatch/mod.rs:12118`; the comment at `:12124` notes the mutex wait counts…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/50",
      "PublishedAt": "2026-09-23T12:17:21.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "Long queries emit no progress and notifications/cancelled is ignored (client told cancelled while query succeeds server-side)",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2).\n\n### What happens\nDuring a long-running `oracle_query`, the client receives **no progress** for the whole duration, and `notifications/cancelled` is **ignored** — the statement is never cancelled server-side. In two observed cases the client was told `{\"error_class\":\"TIMEOUT\",\"message\":\"request cancelled: Cancelled\"}` after ~31s, but the audit log shows the **same query SUCCEEDED** (rows returned) — i.e. the client believes the read was cancelled while it…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/49",
      "PublishedAt": "2026-09-23T12:17:17.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "call_timeout_seconds=0 silently disables BOTH per-call and whole-request timeouts; Some(0) mappings disagree",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2). Driver: `oraclemcp-driver-cx =0.9.2`.\n\n### What happens\nSetting a profile's `call_timeout_seconds = 0` — the natural way to say \"no per-round-trip limit\" — silently **also removes the whole-request timeout**, so a query can run unbounded (observed: a query ran >30 minutes until the MCP client aborted it). The three timeout mappings also disagree on what `Some(0)` means.\n\n### Root cause (confirmed in code)\n`call_timeout_seconds = 0` maps to `None` in two…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/48",
      "PublishedAt": "2026-09-23T12:17:13.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "Pinned session never recovers after idle: protocol-desync errors not classified as connection-lost + no keepalive default",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2). Driver: `oraclemcp-driver-cx =0.9.2`.\n\n### What happens\nAfter the pinned stdio session sits idle (minutes to a couple of hours), the next tool call fails, and **keeps failing on every retry**, with one of:\n- `query: unknown TTC message type 84 at position 0` (`CONNECTION_FAILED`)\n- `Oracle returned no current system change number`\n- `ORA-00904: \"DBMS_FLASHBACK\".\"GET_SYSTEM_CHANGE_NUMBER\": invalid identifier`\n- `ORA-01555: snapshot too old` on trivial selects…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/47",
      "PublishedAt": "2026-09-23T12:17:09.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "SCN capability probe runs on every call and is never cached (32% of audited traffic; fails 142/142 where ungranted)",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2)\n\n### What happens\nThe SCN capability probe (`scn_capability_probe`, the internal `DBMS_FLASHBACK.GET_SYSTEM_CHANGE_NUMBER` / current-SCN check) runs **before every tool call** and its result is never cached. In a real two-day audit log it accounted for **142 of 441 entries (32%)** and **failed 142/142** on databases where that capability isn't granted — including on the very first call after startup, so it is not an idle-only symptom.\n\n### Why it matters\n1.…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/46",
      "PublishedAt": "2026-09-23T12:17:06.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "oracle_describe_view on a nonexistent view returns success with empty data",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2)\n\n### What happens\n`oracle_describe_view` on a view that does not exist returns **success with empty data** instead of an object-not-found error:\n\n```json\n{\"columns\": [], \"name\": \"SOME_MISSING_VIEW\", \"owner\": \"SOME_OWNER\", \"view\": null}\n```\n\nObserved on three names that were confirmed (via a separate read-only path) not to exist in that schema. A caller can't distinguish \"view exists but has no columns\" from \"view does not exist\", and `view: null` is a silent…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/43",
      "PublishedAt": "2026-09-23T12:16:55.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "Generated-read guard refusal downgraded to INTERNAL, losing PolicyDenied/ForbiddenStatement class",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2)\n\n### What happens\nWhen the generated-read guard (used by `oracle_describe`, `oracle_sample_rows`, `oracle_get_source`, etc.) refuses a statement, the refusal reaches the client as a generic `INTERNAL` error instead of the real `PolicyDenied` / `ForbiddenStatement` class and message.\n\n### Root cause (confirmed in code)\n`GuardedGeneratedReadConn::before_query` maps a refusal envelope to `DbError::Internal(format!(\"{:?}: {}\", class, msg))` via…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/42",
      "PublishedAt": "2026-09-23T12:16:52.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "oracle_get_source rejects VIEW while get_ddl accepts it; object_type is a free string, not an enum",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2)\n\n### What happens\n- `oracle_get_source` does not accept `object_type: \"VIEW\"` (fails with \"unsupported source object type\"), while `oracle_get_ddl` does accept VIEW. A client reasonably expects \"get source\" to work for a view.\n- The `object_type` argument is a free-form string in the schema (`crates/oraclemcp/src/registry.rs:1061`), not an enum, so clients can't discover the allowed values up front and only learn of the restriction by failing.\n\n### Root cause…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/39",
      "PublishedAt": "2026-09-23T12:16:41.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "Error misclassification: argument errors and ORA-01555 -> CONNECTION_FAILED; server-owned SQL failure -> SYNTAX_ERROR",
      "Excerpt": "### Version\n0.11.0 (commit 73973b2)\n\n### What happens\nSeveral failures are given the wrong `error_class` and a misleading `suggested_tool`:\n\n1. **Argument errors reported as connection failures.** `oracle_get_source {\"object_type\": \"VIEW\"}` →\n   `{\"error_class\":\"CONNECTION_FAILED\",\"message\":\"unsupported source object type: \\\"VIEW\\\"\",\"suggested_tool\":\"oracle_connection_info\"}`.\n   It's a bad argument, not a connection problem. Same pattern for other validation messages: `search_source`,…",
      "SourceUrl": "https://github.com/MuhDur/oraclemcp/issues/38",
      "PublishedAt": "2026-09-23T12:16:37.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    }
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