GHSA-558v-64gr-wgg4

The Bzip2Decoder handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [Bzip2BlockDecompressor.read()]

Database specific

{
    "nvd_published_at": null,
    "severity": "HIGH",
    "github_reviewed_at": "2026-07-22T21:50:47Z",
    "cwe_ids": [
        "CWE-835"
    ],
    "github_reviewed": true
}

References

Affected packages

Maven / io.netty:netty-codec-compression

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

4.2.0.Final

Fixed

4.2.16.Final

Affected versions

4.*

4.2.0.Final

4.2.1.Final

4.2.2.Final

4.2.3.Final

4.2.4.Final

4.2.5.Final

4.2.6.Final

4.2.7.Final

4.2.8.Final

4.2.9.Final

4.2.10.Final

4.2.11.Final

4.2.12.Final

4.2.13.Final

4.2.14.Final

4.2.15.Final

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-558v-64gr-wgg4/GHSA-558v-64gr-wgg4.json"

Maven / io.netty:netty-codec

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.1.136.Final

Affected versions

4.*

4.0.0.Alpha1

4.0.0.Alpha2

4.0.0.Alpha3

4.0.0.Alpha4

4.0.0.Alpha5

4.0.0.Alpha6

4.0.0.Alpha7

4.0.0.Alpha8

4.0.0.Beta1

4.0.0.Beta2

4.0.0.Beta3

4.0.0.CR1

4.0.0.CR2

4.0.0.CR3

4.0.0.CR4

4.0.0.CR5

4.0.0.CR6

4.0.0.CR7

4.0.0.CR8

4.0.0.CR9

4.0.0.Final

4.0.1.Final

4.0.2.Final

4.0.3.Final

4.0.4.Final

4.0.5.Final

4.0.6.Final

4.0.7.Final

4.0.8.Final

4.0.9.Final

4.0.10.Final

4.0.11.Final

4.0.12.Final

4.0.13.Final

4.0.14.Beta1

4.0.14.Final

4.0.15.Final

4.0.16.Final

4.0.17.Final

4.0.18.Final

4.0.19.Final

4.0.20.Final

4.0.21.Final

4.0.22.Final

4.0.23.Final

4.0.24.Final

4.0.25.Final

4.0.26.Final

4.0.27.Final

4.0.28.Final

4.0.29.Final

4.0.30.Final

4.0.31.Final

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4.0.33.Final

4.0.34.Final

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4.0.36.Final

4.0.37.Final

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4.0.40.Final

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4.0.42.Final

4.0.43.Final

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4.0.46.Final

4.0.47.Final

4.0.48.Final

4.0.49.Final

4.0.50.Final

4.0.51.Final

4.0.52.Final

4.0.53.Final

4.0.54.Final

4.0.55.Final

4.0.56.Final

4.1.0.Beta1

4.1.0.Beta2

4.1.0.Beta3

4.1.0.Beta4

4.1.0.Beta5

4.1.0.Beta6

4.1.0.Beta7

4.1.0.Beta8

4.1.0.CR1

4.1.0.CR2

4.1.0.CR3

4.1.0.CR4

4.1.0.CR5

4.1.0.CR6

4.1.0.CR7

4.1.0.Final

4.1.1.Final

4.1.2.Final

4.1.3.Final

4.1.4.Final

4.1.5.Final

4.1.6.Final

4.1.7.Final

4.1.8.Final

4.1.9.Final

4.1.10.Final

4.1.11.Final

4.1.12.Final

4.1.13.Final

4.1.14.Final

4.1.15.Final

4.1.16.Final

4.1.17.Final

4.1.18.Final

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4.1.50.Final

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4.1.54.Final

4.1.55.Final

4.1.56.Final

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4.1.131.Final

4.1.132.Final

4.1.133.Final

4.1.134.Final

4.1.135.Final

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-558v-64gr-wgg4/GHSA-558v-64gr-wgg4.json"