# netty-incubator-codec-ohttp's Incorrect Native Pointer Derivation in Pooled Direct ByteBuf Fallback Leads to Out-of-Bounds Native Memory Access

Advisory record · `GHSA-32hf-8jw3-v4qq`

- **Identifiers:** `GHSA-32hf-8jw3-v4qq` · `CVE-2026-48040`
- **State:** Confirmed
- **Severity:** CVSS 6.8 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-125](https://cwe.mitre.org/data/definitions/125.html) · [CWE-787](https://cwe.mitre.org/data/definitions/787.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md)
- **Published:** 11 Jun 2026
- **Updated:** 11 Jun 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 11 Jun 2026, 13:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `io.netty.incubator:netty-incubator-codec-ohttp-hpke-native-boringssl` (Maven): affected `<0.0.22.Final`; fixed in `0.0.22.Final`

## 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

- 6.8 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:20 UTC: First seen by agentprime
- 31 Oct 2026, 14:20 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-32hf-8jw3-v4qq)

## Sources

- [GitHub Advisory Database: GHSA-32hf-8jw3-v4qq](https://github.com/advisories/GHSA-32hf-8jw3-v4qq)
- [OSV: GHSA-32hf-8jw3-v4qq](https://osv.dev/vulnerability/GHSA-32hf-8jw3-v4qq)
- <https://github.com/netty/netty-incubator-codec-ohttp/security/advisories/GHSA-32hf-8jw3-v4qq>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-48040>
- <https://github.com/netty/netty-incubator-codec-ohttp/commit/7ad38d5cc2827af7e067e5c1e1ac37cd4566dad9>
- <https://github.com/netty/netty-incubator-codec-ohttp>

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-32hf-8jw3-v4qq>, 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-32hf-8jw3-v4qq/>. Everything for agents: <https://agentprime.io/llms.txt>.