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CVE-2026-48748

A flaw was found in Netty. A remote attacker can exploit a memory exhaustion vulnerability in the Netty HTTP/3 codec by creating an infinite number of blocked streams. This can lead to an Out Of Memory (OOM) error, resulting in a Denial of Service (DoS) for the affected system.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:62634c4903c7ee2ee1bda93fe3c4ea019797dcffeb6deab38741c9d0c270fa60
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"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:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:apache_camel_hawtio:4"],"defaultStatus":"unknown","packageName":"netty-codec-http3","product":"Red Hat build of Apache Camel - HawtIO 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/affected/0
cwe · 2 assertions

{"cweId":"CWE-770","description":"Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/problemTypes/0/descriptions/0

{"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:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

2 source assertions
{"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:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:apache_camel_hawtio:4"],"defaultStatus":"unknown","packageName":"netty-codec-http3","product":"Red Hat build of Apache Camel - HawtIO 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-770","description":"Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/problemTypes/0/descriptions/0
{"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:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-48748"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/references/0
{"name":"RHBZ#2488441","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2488441"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/references/1
{"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:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/cna/references/1
{"name":"https://github.com/netty/netty/security/advisories/GHSA-4grm-h2qv-h6w6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/netty/netty/security/advisories/GHSA-4grm-h2qv-h6w6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48748.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43bb5e8b41074e50da1a3a40f0e30bc6729a1eb970b404caf375e85c06e28b86 · sha256:ff3d878593efe4c3… · /containers/adp/1/references/2

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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