GHSA-vmr9-j6wf-pmh2

Source

https://github.com/advisories/GHSA-vmr9-j6wf-pmh2

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-vmr9-j6wf-pmh2/GHSA-vmr9-j6wf-pmh2.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-vmr9-j6wf-pmh2

Aliases

CVE-2026-54251

Published

2026-08-20T18:39:50Z

Modified

2026-08-20T18:48:08Z

Severity

8.7 (High) CVSS_V4 - 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 CVSS Calculator

Summary

netty-incubator-codec-ohttp: [OHttpServerCodec] Native Direct-Memory Leak on AEAD Decryption Failure Leads to Gateway Denial of Service

Details

The netty-incubator-codec-ohttp library implements Oblivious HTTP (OHTTP) gateway and client functionality using Netty's ByteBuf memory management. When an OHTTP gateway processes encrypted client requests, it allocates a pooled direct (native off-heap) ByteBuf to hold the decrypted plaintext before the AEAD tag is verified. If the AEAD tag check fails — meaning the ciphertext is invalid — the decryption method throws a CryptoException, but the allocated buffer is never released because no try/finally block guards the allocation.

Database specific

{
    "cwe_ids": [
        "CWE-664"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-20T18:39:50Z",
    "nvd_published_at": null,
    "severity": "HIGH"
}

References

Affected packages

Maven / io.netty.incubator:netty-incubator-codec-ohttp

Package

Name: io.netty.incubator:netty-incubator-codec-ohttp; View open source insights on deps.dev
Purl: pkg:maven/io.netty.incubator/netty-incubator-codec-ohttp

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.0.23.Final

Affected versions

0.*

0.0.1.Final

0.0.2.Final

0.0.3.Final

0.0.4.Final

0.0.5.Final

0.0.6.Final

0.0.7.Final

0.0.8.Final

0.0.9.Final

0.0.10.Final

0.0.11.Final

0.0.12.Final

0.0.13.Final

0.0.14.Final

0.0.15.Final

0.0.16.Final

0.0.17.Final

0.0.18.Final

0.0.19.Final

0.0.20.Final

0.0.21.Final

0.0.22.Final

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-vmr9-j6wf-pmh2/GHSA-vmr9-j6wf-pmh2.json"