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CVE-2026-59899

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, `HttpContentEncoder` (the superclass of the production handler `HttpContentCompressor`) maintains a per-channel `ArrayDeque<CharSequence>` named `acceptEncodingQueue` that accumulates attacker-controlled data without any size limit. The queue is filled on the I/O thread for every inbound HTTP request and drained only when the application later writes a non-1xx response. This cr
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0fa233166dc1f19d9bfbfdf1f85a5c8d6056fc7527529025704bbe3cd62b1dbf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"netty","vendor":"netty","versions":[{"status":"affected","version":">= 4.2.0.Final, < 4.2.16.Final"},{"status":"affected","version":"< 4.1.136.Final"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:58511a7af1fddac1fbeb879058b5fa921a97106e639ea1f26a91d14eec61f683 · sha256:03aa70f5b3921e61… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:58511a7af1fddac1fbeb879058b5fa921a97106e639ea1f26a91d14eec61f683 · sha256:03aa70f5b3921e61… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:58511a7af1fddac1fbeb879058b5fa921a97106e639ea1f26a91d14eec61f683 · sha256:03aa70f5b3921e61… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/netty/netty/releases/tag/netty-4.1.136.Final","tags":["x_refsource_MISC"],"url":"https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:58511a7af1fddac1fbeb879058b5fa921a97106e639ea1f26a91d14eec61f683 · sha256:03aa70f5b3921e61… · /containers/cna/references/1
{"name":"https://github.com/netty/netty/releases/tag/netty-4.2.16.Final","tags":["x_refsource_MISC"],"url":"https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:58511a7af1fddac1fbeb879058b5fa921a97106e639ea1f26a91d14eec61f683 · sha256:03aa70f5b3921e61… · /containers/cna/references/2
{"name":"https://github.com/netty/netty/security/advisories/GHSA-q4f6-jm68-57ww","tags":["x_refsource_CONFIRM"],"url":"https://github.com/netty/netty/security/advisories/GHSA-q4f6-jm68-57ww"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:58511a7af1fddac1fbeb879058b5fa921a97106e639ea1f26a91d14eec61f683 · sha256:03aa70f5b3921e61… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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