CVE Explorer

CVE-2026-50009

Netty is a network application framework for development of protocol servers and clients. Prior to version 4.2.15.Final, Netty QUIC exposes the stateless reset token on the network path when using the default HMAC-based connection-ID and stateless-reset-token generators. The reset token for the server's current source connection ID can be derived from bytes that appear as the connection ID in QUIC headers after a source-CID rotation. An on-path attacker observing the headers can use the token to

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:be727e5f12e45503f56da9b960547366a51e8954d59a6a7572c4d9a98d0a8f21

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-330","description":"CWE-330: Use of Insufficiently Random Values","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion

{"product":"netty","vendor":"netty","versions":[{"status":"affected","version":">= 4.2.0.Final, < 4.2.15.Final"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-330","description":"CWE-330: Use of Insufficiently Random Values","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/netty/netty/releases/tag/netty-4.2.15.Final","tags":["x_refsource_MISC"],"url":"https://github.com/netty/netty/releases/tag/netty-4.2.15.Final"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /containers/cna/references/1

{"name":"https://github.com/netty/netty/security/advisories/GHSA-cq4q-cv5g-r8q5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/netty/netty/security/advisories/GHSA-cq4q-cv5g-r8q5"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:eeb1645de0bf941918de0279fefed9de2a1d0c2b5a667030efe13b8e3d299598 · sha256:c699d6a4218f83fe… · /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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