# pgx: SQL Injection via placeholder confusion with dollar quoted string literals

Advisory record · `GHSA-j88v-2chj-qfwx`

- **Identifiers:** `GHSA-j88v-2chj-qfwx` · `CVE-2026-41889` · `GO-2026-5004`
- **State:** Confirmed
- **Severity:** CVSS 2.3 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-89](https://cwe.mitre.org/data/definitions/89.html)
- **Tags:** [SQL injection](https://agentprime.io/advisories/tag/sql-injection.md)
- **Published:** 22 Apr 2026
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 22 Apr 2026, 20:46 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/jackc/pgx/v5` (Go): affected `<5.9.2`; fixed in `5.9.2`
- `github.com/jackc/pgx/v4` (Go): affected `<=4.18.3`; no fixed version yet
- `github.com/jackc/pgx` (Go): affected `<=3.6.2`; no fixed version yet

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 2.3 Low, CVSS 4.0: `CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0036, the 29th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:13 UTC: First seen by agentprime
- 31 Oct 2026, 14:13 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-j88v-2chj-qfwx)

## Sources

- [GitHub Advisory Database: GHSA-j88v-2chj-qfwx](https://github.com/advisories/GHSA-j88v-2chj-qfwx)
- [OSV: GHSA-j88v-2chj-qfwx](https://osv.dev/vulnerability/GHSA-j88v-2chj-qfwx)
- <https://github.com/jackc/pgx/security/advisories/GHSA-j88v-2chj-qfwx>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-41889>
- <https://github.com/jackc/pgx/commit/60644f84918a8af66d14a4b0d865d4edafd955da>
- <https://github.com/jackc/pgx>
- <https://github.com/jackc/pgx/releases/tag/v5.9.2>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-j88v-2chj-qfwx>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-j88v-2chj-qfwx/>. Everything for agents: <https://agentprime.io/llms.txt>.